Plant science JRF 2020

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Plant science JRF 2020 Question Paper

Plant science JRF 2020 Question Paper

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Q.1 Arrange these Conventions and Treaties in ascending order of year they entered into force?

A. World Trade Organization-Trade Related Aspect of intellectual Property Rights (WTO-TRIPS)

B. Convention on Biological Diversity (CBD)

C. Nagoya Protocol on Access and Benefit Sharing (NP)

D. Geographical Indication of Goods (Registration and Protection, GI Act

E. International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA)

Choose the correct answer from the options given below:

  1. B, D, A, E, C
  2. A, B, D, E, C
  3. E, C, B, A, D
  4. D, B, A, E, C

A, B, D, E, C

Q.2 Given below are two statements?

Statement I: Nitrogenase enzyme is sensitive to molecular oxygen

Statement II: Bacteria of genus Azospirillum fix nitrogen under microaerophillic conditions

In the light of above statements, choose the most appropriate answer from the options given below

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement II is correct but Statement I is false

Both Statement I and Statement II are true

Q.3 Match List I with List II

List I List II
A. Chitin I. Archaebacteria
B. Pseudomurein II. Gram-positive bacteria
C. O-antigens III. Fungal cell wall
D. Teichoic acid IV.Gram-negative bacteria

Choose the correct answer from the options given below:

  1. A (III), B (I), (II), D (IV)
  2. A (I), B (III), C (II), D (IV)
  3. A (I), B (III), C (IV), D (I)
  4. A (III), B (I), C (IV), D (II)

A (III), B (I), C (IV), D (II)

Q.4 Minimum standard of seed germination (%) for seed certification in maize is?

  1.  80
  2.  85
  3.  90
  4.  75

90

Q.5 The genome of Triticale is designated as?

  1. AABB
  2. AABBCC
  3. AABBDD
  4. AABBRR

AABBRR

Q.6 In which of the following seed storage conditions, the longevity of the seeds would be maximum?

  1. Normal ambient storage
  2. Moisture proof storage
  3. Dehumidified with low temperature (5-8 °C) storage
  4. Dehumidified storage only

Dehumidified with low temperature (5-8 °C) storage

Q.7 Vertical resistance is useful in crop improvement programme for importing resistance?

  1. Because of their monogenic nature
  2. Because of their polygenic nature
  3. The pathogen can break their resistance by evolving new race
  4. The pathogen cannot break this resistance
  5. Vertical resistance will work against biotrophic pathogens

Choose the correct answer from the options given below:

  1. A, B, C Only
  2. B, C, D Only
  3. A,C, E Only
  4. C, D, E Only

Q.8 The first product to be tagged with GI in India is?

  1. Assam Tea
  2. Nilgiri Tea
  3. Darjeeling tea
  4. Organic tea

Darjeeling tea

Q.9 An organism has haploid chromosome number 7. The probability that a sperm produced by it will contain all the 7 chromosomes whose centromeres were derived from the maternal homologue is?

  1. (1/2)1
  2. (1/2)3
  3. 3.(1/2)5
  4. (1/2)7

(1/2)7

Q.10 Match List I with List lI

List I List II
(Theory) (Scientist who proposed)
A. Cell theory I. Clarence P Oliver
B. Chromosomal theory of inheritance II. Schleiden, Schwann, and Virchow
C. Divisibility of gene III. Vernon Ingram
D. One gene-one polypeptide IV. Walter Sutton and Theodor Boveri

Choose the correct answer from the options given below

  1. A-II, B-I, C-IV, D-III
  2. A-II, B-IV, C-I, D-II
  3. A-IV, B-III, C-II, D-I
  4. A-III, B-II, C-I, D-IV

A-II, B-IV, C-I, D-II

Q.11 The isolation distance required for production of certified seeds of maize composite variety is?

  1. 200 m
  2. 300 m
  3. 100 m
  4. 50 m

200 m

Q.12 Which one of the following bacterial pathogenic genus is classified under Gram-negative aerobic and microaerophilic rods?

  1. Acidovorax
  2. Erwinia
  3. Pantoea
  4. Enterobacter

Acidovorax

Q.13 The seed dormancy can be detected by?

  1. Vigor test
  2. Germination test
  3. Tetrazolium test
  4. Purity test

Tetrazolium test

Q.14 Certain plant pathogens do not live at the site of the symptom or symptomate plant niche?

  1. They only transfer virulent factors to host
  2. Plant attracts the virulence factors by its chemical signals
  3. This kind of pathogen survive in the rhizosphere of the infected plant
  4. Virulence factors can be cultured on media
  5. Infected plant can be recovered with time

Choose the correct answer from the options given below:

  1. B, C, E Only
  2. C, D, E Only
  3. A,C, D Only
  4. A, B, C Only

A, B, C Only

Q.15 The tag for Breeders Seed is issued by?

  1. State Seed Certification Agency
  2. Central Seed Certification Agency
  3. Concerned Breeder of the variety
  4. Independent organization operated under the state government

Concerned Breeder of the variety

Q.16 Who among the following scientist is considered as Father of Green Revolution in India’?

  1. Dr B P Pal
  2. Dr RS Paroda
  3. Dr MS Swaminathan
  4. Dr Gurudev S Khush

Dr MS Swaminathan

Q. 17 Translocation of carbohydrates in plants usually occurs in the form of?

  1. Glucose
  2. Maltose
  3. Starch
  4. Sucrose

Sucrose

Q. 18 Cell wall of archaebacteria do not contain?

  1. Proteins
  2. Glycoproteins
  3. Polysaccharides
  4. Peptidoglycans

Peptidoglycans

Q.19 Given below are two statements?

Statement I: The process of CTC in tea stands for Crushing, Tearing and Curling

Statement II: The process of CTC in tea stands for Curling, Tearing and Crushing

In the light of the above statements, choose the most appropriate answer from the options given below

  1. Both Statement I and Statement ll are true
  2. Both Statement I and Statement ll are false
  3. Statement I is correct but Statement ll is false
  4. Statement l is incorrect but Statement ll is True

Statement I is correct but Statement ll is false

Q.20 The National Genebank Facility to conserve plant genetic resources in India is located at?

  1. Chennai (Tamil Nadu)
  2. Ahmedabad (Gujarat)
  3. New Delhi (Delhi)
  4. Hyderabad (Telangana)

New Delhi (Delhi)

Q.21 Which of the following is NOT a non-sense codon?

  1. UAG
  2. UAA
  3. AUG
  4. UGA

AUG

Q.22 Which of the statements below do NOT stand true about the ‘Convention on Biological Diversity (CBD)?

  1. CBD deals with all biological resources
  2. One of the objectives of CBD is the conservation and sustainable use of the component of biodiversity
  3. The CBD affims the sovereign rights of the nation over its genetic resources
  4. CBD is an instrument for harmonizing phytosanitary measures in international trade
  5. CBD provides a model for securing protection for plant breeder rights for plant varieties

Choose the correct answer from the options given below:

  1. A, B only
  2. B, C only
  3. C. D only
  4. D. E only

D. E only

Q.23 Naked asci can be observed in which ascomycete fungus?

  1. Erysiphe
  2. Claviceps
  3. Taphrina
  4. Uncinula

Taphrina

Q.24 Given below are two statements?

Statement I: Higher the degree of cross-pollination in crops, more will be the isolation distance requirement

Statement ll: Self-pollinated crops need more isolation distance like cross-pollinated crops

In light of the above statements, choose the most appropriate answer from the options given below

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement I is true

Statement I is correct but Statement II is false

Q.25 Identify the correct order of activities followed for testing and release of crop varieties?

  1. Multi-location testing
  2. Station trial
  3. Variety identification
  4. Release and notification
  5. Seed mutiplication and distribution

Choose the correct answer from the options given below:

  1. A, B, C, E, D
  2. B, A, C, D, E
  3. B, C, D, E, A
  4. C, D, A, E, B

B, A, C, D, E

Q.26 Given below are two statements:

Statement I: Witches broom symptoms are caused by phytoplasmas

Statement II: Nutrient deficiency also causes witches broom in crop plants

In light of the above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

Q.27 Which one of the following viruses is transmitted by pollen?

  1. Tospovirus
  2. Tobravirus
  3. Prunus necrotic ringspot virus
  4. Papaya ringspot virus

Prunus necrotic ringspot virus

Q.28 Zein, a special kind of protein is obtained from?

  1. Ramie (Boehmeria nivea)
  2. Guar (Cyamopsis tetragonoloba)
  3. Grass pea (Lathyrus sativus)
  4. Maize (Zea mays)

Maize (Zea mays)

Q.29 Given below are two statements:

Statement I: Xanthomonas causes disease on fibre plant parts

Statement II: Xanthomonas can cause vascular wilt in rice

In light of the above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

Q.30 Match ListI with List II:

List I List II
(Organelle) (Function)
Mitochondrna Packaging protein, lipid, and phospholipid for transport to other cells
Endoplasmic reticulum Oxidation of carbohydrate, lipid, and protein
Lysosomes III. Digestion of intra-cellular substances and foreign material
Golgi complex IV. Provide passage for mRNA from nucleus to cytoplasm

Choose the correct answer from the options given below:

  1. A-II, B-I, C-III, D-IV
  2. A-II, B-IV, C-III, D-I
  3. A-II, B-IV, C-I, D-III
  4. A-I, B-II, C-III, D-IV

A-II, B-IV, C-III, D-I

Q.31 At the minimum, how many years of multi-location testing is required for a conventionally bred genotype to be released as a new variety?

  1. 2 years
  2. 3 years
  3. 4 years
  4. 5 years

3 years

Q.32 How many linkage groups are present in maize (Zea mays L)?

  1. 10
  2. 20
  3. 12
  4. 13

10

Q.33 Given below are two statements?

Statement I: Cleistogamy and chasmogamy favour self-fertilization

Statement II: Male sterility and self-incompatibility do not favor cross-fertilization

In light of the above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Statement I is correct but Statement II is false

Q.34 With regard to the cultivation of groundnut, which of the following statements are correct?

  1. Groundnut is a warm-season crop requiring abundant sunshine
  2. Well-drained sandy loams are most favourable for growing groundnut
  3. Groundnut is propagated through whole pods, decorticated seeds or from seedlings
  4. Groundnut is widely grown in coastal and deltaic regions
  5. Groundnut takes six to nine months to mature

Choose the correct answer from the options given below:

  1. A, B, C only
  2. B, C, D only
  3. C, D, E only
  4. A, D, E only

A, B, C only

Q.35 Cell theory was put forward by?

  1. Singh & Nicolsan
  2. Leeuwenhoek
  3. Schleiden & Schwann
  4. Calvin & Malvin

Schleiden & Schwann

Q.36 The purity standard of certified seeds of carrot is?

  1. 95%
  2. 98%
  3. 97%
  4. 70%

95%

Q.37 Which of the following listed items do Not come under the purview of the National Plant Protection Organization (NPPO) under the International Plant Protection Convention (IPPC)?

  1. Surveillance and inspection
  2. Controlling pests (example administering treatments, preventing spread, disinfection or disinfestation)
  3. Conduction of pest risk analysis
  4. Conservation and regeneration of plant genetic resources
  5. Multiplication of plant genetic resources

Choose the correct answer from the options given below

  1. A, B only
  2. B, C only
  3. A, E only
  4. D, E only

D, E only

Q.38 Which of the following statements are correct with respect to fibres or fibre yielding plants?

  1. Vegetable fibres are mainly composed of cellulose
  2. Vegetable fibres are mainly composed of proteins
  3. Fibre durability is conditioned by the diameter of the fibre or fibrous aggregate
  4. The flexible wall of cotton fibre contains no lignin

Choose the correct answer from the options given below:

  1. A, B, C only
  2. A, C, D only
  3. B, C, D only
  4. A, B, D only

A, C, D only

Q.39 Which one of the following species has an inflorescence of terminal digitate spikes of spikelets?

  1. Setaria italica
  2. Eleusine coracana
  3. Panicum sumatrense
  4. Panicum miliaceum

Eleusine coracana

Q.40 The yield of inbred A is 40 a/ha, inbred B is 20 q/ha, check hybrid yield is 45 a/ha and the yield of hybrid (A x B) is 50 q/ha. The standard heterosis (%) is?

  1. 25%
  2. 11.1%
  3. 66.6%
  4. 50%

11.1%

Q.41 Conjugation between two bacteria is mediated through?

  1. F-plasmid
  2. R-plasmid
  3. C-plasmid
  4. D-plasmid

F-plasmid

Q.42 Toxic shock syndrome, a severe infection characterized by high fever and vomiting is caused by?

  1. Bacillus anthracis
  2. Staphylococcus aureus
  3. Streptococcus pyogenes
  4. Enterococcus foecalis

Staphylococcus aureus

Q.43 Given below are two statements:

Statement I: Potato is essentially a crop of cool moist regions and grows best in a climate where cool nights alternate with warm days during the period of tuber formation

Statement II: Irrigation or rainfall at or just before the initiation of tuber formation will result in decrease of the number of tuber sets

In the light of the above statements, choose the most appropriate answer from the options given below

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. 4 Statement I is incorrect but Statement II is True

Statement I is correct but Statement II is false

Q.44 The degree of compost maturity can be assessed by?

  1. Seed germination test only
  2. Infrared technique only
  3. Moisture content only
  4. Both, seed germination test and infrared technique

Both, seed germination test and infrared technique

Q.45 Match List I with List II?

List I List II
(Class of seed) (Color of tag)
A. Breeders seed I. No tags are used
B. Nucleus seed II. Golden brown
C. Certified seed III. Azure blue
D. Foundation seed IV. White

Choose the correct answer from the options given below:

  1. A-III, B-I, C-II, D-IV
  2. A-I, B-II, C-III, D-IV
  3. A-II, B-I, C-III, D-IV
  4. A-IV, B-I, C-II, D-III

A-II, B-I, C-III, D-IV

Q.46 Given below are two statements:

Statement I: Light reaction takes place in the stroma

Statement II: Dark reaction takes place in grana

In light of the above statements, choose the most appropriate answer from the options given below

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement l is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Both Statement I and Statement II are false

Q.47 Irradiation by UV light causes?

  1. Dimerization of purines
  2. Dimerization of pyrimidines
  3. Dimerization of both purines and pyrimidines
  4. Dimerization of either purines or pyrimidines

Dimerization of pyrimidines

Q.48 Match List I with List II

               List I                      List II
(Genotype)  (Population)
A. Inbred lines I. Homozygous and heterogenous
B. 3-way cross hybrid II.Homozygous and homogeneous
C. Single cross hybrid III. Heterozygous and heterogenous
D. Multiline IV. Heterozygous and homogenous

Choose the correct answer from the options given below:

  1. A-I, B-IV, C-III, D-II
  2. A-II, B-III, C-I, D- IV
  3. A-II, B-IV, C-II, D-I
  4. A-I, B-III, C-IV, D-I

A-I, B-III, C-IV, D-I

Q.49 Given below are two statements:

Statement I: When one dominant allele of one gene and recessive allele of another gene are present on one chromosome and their opposite alleles are present on the homologous chromosome, the arrangement is called Cis-heterozygote

Statement II: When the dominant alleles of two genes are present on one chromosome and their corresponding recessive alleles are present on the homologous chromosome, the arrangement is called Cis-heterozygote

In the light of the above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Statement I is incorrect but Statement II is true

Q.50 Given below are two statements:

Statement I: Leaf curl is one of the symptoms of viral disease

Statement II: Fungi can also cause leaf curl symptoms

In light of the above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

Q.51 Scientific name of Oil palm is?

  1. Olea europea
  2. Elaeis guineensis
  3. Ricinus communis
  4. Sesamum indicum

Elaeis guineensis

Q.52 When two self-incompatible but cross-compatible parental lines are inter-planted, the seeds harvested from both the self-incompatible lines will be?

  1. Composite seeds
  2. Selfed seeds
  3. Hybrid seeds
  4. Inbred seeds

Hybrid seeds

Q.53 Given below are two statements?

Statement I: Spatial and temporal transmission of plant pathogens are in general guided by asexual and sexual spores

Statement II: Bacterial pathogens produce asexual cells

In the light of the above statements, choose the most appropriate answer from the options given below

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

Q.54 Which of the following statements is NOT true for Koch’s postulates?

  1. A specific organism can always be found in association with a given disease
  2. The organism can be isolated from a diseased animal and grown in pure culture in the laboratory
  3. The pure culture will produce the disease when inoculated into a resistant animal
  4. The pure culture will not produce the disease when inoculated into a susceptible animal
  5. It is possible to recover the organism in pure culture from the experimentally infected animal

Choose the correct answer from the options given below:

  1. C and D only
  2. C, D and E only
  3. C only
  4. C and E only

C and D only

Q.55 The gene A-B-D are present in one chromosome in the coupling phase of linkage. One of the double cross-Over gametes has A-b-D gene combination. The gene which was in the middle of the sequence is?

  1. A
  2. B
  3. D
  4. Cannot determine

B

Q.56 Maximum assimilation of nitrate takes place in which part of the plant?

  1. Stem
  2. Root
  3. Leaves
  4. Fruit

Root

Q.57 Which one of the following is NOT an introduced variety of wheat crop?

  1. Turkey
  2. Marquis
  3. Federation
  4. Latisail

Latisail

Q.58 Match List I with List ll

List I List II
(Organization) (Location)
A. International Water Management Institute I. Lima, Peru
B. International Rice Research Institute II. lbadan, Nigeria
C. International Institute of Tropical Agriculture III. Colombo, Sri Lanka
D. International Centre for Potato IV. Los Banos, Philippines

Choose the correct answer from the options given below:

  1. A-III, B-IV, C-I, D-II
  2. A-III, B-I, C-IV, D-II
  3. A-III, B-IV, C-II, D-I
  4. A-II, B-III, C-IV, D-I

A-III, B-IV, C-II, D-I

Q.59 End product of Glycolysis is?

  1. Acetyl CoA
  2. Pyruvic acid
  3. Glucose-1-Phosphate
  4. Fructose-1-Phosphate

Pyruvic acid

Q.60 The hormone needed for cell division during germination of seed is?

  1. Gibberelin
  2. Abscisic acid
  3. Cytokinin
  4. Ethylin

Cytokinin

Q.61 Match List I with List II

List I List II
A. Tumor I. Xanthomonas
B. Wilt II . Pectobacterium
C. Spot III. Pantoea
D. Rot IV. Agrobacterium
   

Chose the correct answer from the options given below:

  1. A (IV), B (III), C (l), D (II)
  2. A (IV), B (II), C (II), D (I)
  3. A (III), B (II), C (IV), D (I)
  4. A (I). B (IV). C (II), D (III)

A (IV), B (III), C (I), D (II)

Q.62 What is the probability when both parents with blood type ‘A’ and normal vision (not colour-blind) produce their 1st son, who has blood type ‘0’ and is colour blind?

  1. 1/2
  2. 1/4
  3. 1/8
  4. 1/16

1/8

Q.63 Given below are two statements:

Statement I: inbreeding depression is the loss of vigour and fertility due to homozygosity of deleterious recessive alleles

Statement II: Inbreeding depression is due to loss of vigour and fertility due to heterozygosity of recessive alleles

In light of the above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Statement I is correct but Statement II is false

Q.64 In a cross (AaBbCCDdEE) x (AABbCcDdEe), what is the probability that any particular gamete from the female parent will be AbCdE?

  1. 1/4
  2. 1/6
  3. 1/16
  4. 1/8

1/8

Q.65 Rishitin is a phytoalexin produced by?

  1. Cotton
  2. Potato
  3. Pepper
  4. Pea

Potato

Q. 66 Arrange the operations in seed processing in correct order?

  1. Cleaning and grading
  2. Drying
  3. Seed treatment
  4. Seed testing
  5. Bagging and labelling

Choose the correct answer from the options given below

  1. B-A-D-C-E
  2. A-B-C-D-E
  3. A-D-C-B-E
  4. C-D-B-A-E

B-A-D-C-E

Q.67 To estimate the genetic diversity of germplasm collection, a technique involving multivariate analysis based on ordination giving graphical representation is?

  1. D2 analysis
  2. Principal Component Analysis
  3. Cluster analysis
  4. Linkage analysis

Principal Component Analysis

Q.68 In the Hershey and Chase experiment, 32P and 35S were used because:

  1. Both P and S are absent in RNA
  2. P and S both are present in DNA and protein
  3. P is present in DNA and S is present in protein only
  4. D.Selective labeling of DNA and protein can be done 32P and 35S
  5. Both are easily available in gaseous form

Choose the correct answer from the options given below:

  1. A and E only
  2. C and D only
  3. B and D only
  4. C and E only

C and D only

Q.69 Starting from interior to exterior, arrange the following in correct order?

  1. Periplasmic space
  2. Nucleus
  3. Plasma membrane
  4. Cell wall
  5. Endoplasmic reticulum

Choose the correct answer from the options given below:

  1. B, E, A, C, D
  2. B, E,C, D, A
  3. B, E, C, A,D
  4. B, A, E, C, D

B, E, C, A,D

Q.70 In which host-patho system does the Gene-for-Gene hypothesis operate?

  1. Host- Nectrotrophic interaction
  2. Host- Saprophytic interactior
  3. Host- Biotrophic interaction
  4. Host- Obligate Saprophytic interaction

Host- Biotrophic interaction

Q.71 Given below are two statements:

Statement I: In bacterial transformation, a segment of naked DNA from the surroundings passes through the cell wall and plasma membrane of a recipient cell

Statement II: Only a few competent recipient bacterial cells can take up the DNA from the surroundings

In light of the above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

Q.72 Which of the following stages of cell division is primarily arrested by treating with colchicine, used in polyploidization of plants?

  1. Anaphase
  2. Telophase
  3. Interphase
  4. Metaphase

Metaphase

Q.73 A cultivar developed through population improvement approach can be maintained indefinitely with proper identity through?

  1. Pure line selection
  2. Random mating in isolation
  3. Selfing in isolation
  4. Top crossing

Random mating in isolation

Q.74 Transfer of a portion of DNA from one bacterium to another by a bacteriophage is called?

  1. Transformation
  2. Conjugation
  3. Transduction
  4. Translocation

Transduction

Q.75 Which of the following statements are true with respect to tomato?

  1. Tomato plants are not sensitive to frost
  2. Typically tomato seeds are first sown in a nursery and transplanted later into the field
  3. Tomato is a native crop of Asia
  4. Under normal conditions, tomato assumes spreading habit
  5. Tomato is an annual crop

Choose the correct answer from the options given below

  1. A, C E only
  2. B, D, E only
  3. D, A, C only
  4. A, B, D only

B, D, E only

Q.76 Chief functions of leaves are?

  1. Gaseous exchange and photosynthesis
  2. Respiration and photosynthesis
  3. Respiration and Digestion
  4. Respiration and gaseous exchange

Gaseous exchange and photosynthesis

Q.77 Which disease greatly stimulated interest in the cause and control of plant disease?

  1. Downy mildew of grapevine
  2. Early blight of potato
  3. Late blight of potato
  4. Wheat rust disease

Late blight of potato

Q.78 What is the role of antibiotics in disease management?

  1. Prevent the growth of pathogens
  2. Prevent the development of pathogens
  3. Accelerate the growth of pathogens
  4. Accelerate the development of pathogens

Choose the correct answer from the options given below

  1. A, D only
  2. B, C only
  3. A, B only
  4. C, D only

A, B only

Q.79 Which of the following vascular wilt is transmitted by beetles?

  1. Bacterial wilt of tomato
  2. Fungal wilt of banana
  3. Bacterial wilt of banana
  4. Fungal wilt of date palm

Fungal wilt of date palm

Q.80 What are the genotypes that will be included in the trial for the estimation of heterobeltiosis?

  1. F1 hybrid developed and the parental lines
  2. F1 hybrid and commercially released hybrid (check)
  3. F1 hybrid developed only
  4. Parental lines and commercially released hybrid (check)

F1 hybrid developed and the parental lines

Q. 81 Which of the following is an INCORRECT statement about hybrids?

  1. Can be produced only in cross-pollinated crop species
  2. Exploits both GCA and SCA components
  3. Are highly homogenous
  4. Genetic constitution changes over generations

Can be produced only in cross-pollinated crop species

Q.82 Fractional sterilization is also called?

  1. Pasteurization
  2. Tyndallization
  3. Fractionation
  4. Dry heat sterilization

Tyndallization

Q.83 Match List I with List II

List I List II
A. Baiting I. Nematodes
B. Ooze test II . Bacteria
C. Elisa III. Fungi
D. Baermann-funnel technique IV. Virus

Chose the correct answer from the options given below:

  1. 1.A (I), B (II), C (III), D (IV)
  2. A (III), B (II), C (IV), D (I)
  3. A (IV), B (III), C (II), D (I)
  4. A (II), B (I), c(III), D (IV)

A (III), B (II), C(IV), D (I)

Q.84 As per Seymour Benzer, a unit of mutation (muton) and unit of recombination (recon), respectively represent:

  1. Single gene and any pair of genes
  2. Single nucleotide and any adjacent pairs of nucleotide
  3. Single gene and any homologous pair of chromosomes
  4. Single nucleotide and any single gene
  5. Deletion mutants and any cross-over gene

Choose the correct answer from the options given below:

  1. A only
  2. B only
  3. A, B, C only
  4. C, D, E only

B only

Q.85 Which one of the following is a biotrophic oomycete?

  1. Phytophthora capsici
  2. Pythium ultimum
  3. Phytophthora ramorum
  4. Plasmopara viticola

Plasmopara viticola

Q. 86 Which one of the following fungus is Perithecial ascomycetes?

  1. Erysiphe
  2. Uncinula
  3. Podosphaera
  4. Giberella

Giberella

Q. 87 A crop variety enjoys legal protection in India, provided it is?

  1. Developed by a breeder in a government organization
  2. Registered with the PPV & FR Authority
  3. Cultivated in a large area
  4. Released by any Variety Release Committee

Registered with the PPV & FR Authority

Q.88 Match List I with List II

List I List II
Incineration I. Culture media
Sodium hypochlorite II. Sterilization of inoculation needle
Moist heat sterilization III. Surface sterilization of seeds
Filter sterilization IV. Thermo labile liquids

Choose the correct answer from the options given below:

  1. A (I), B (IV), C(III), D (II)
  2. A (IV), B (II), C (III), D (I)
  3. A (II), B(III), C(I), D (IV)
  4. A (III), B (I), C (IV), D (II)

A (II), B(III), C(I), D (IV)

Q.89 Given below are two statements:

Statement I: Many viral diseases are transmitted by insect vectors

Statement II: Few insects transmit bacterial diseases

In the light of above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

Q.90 Match List I with List II

List I List II
(Crop) (Edible part)
A. Cauliflower I. Root
B. Chilli II.Leaves
C. Carrot III. Inflorescence
D. Spinach IV. Fruits

Choose the correct answer from the options given below:

  1. A-I, B-II, C-III, D-IV
  2. A-III, B-lV, C-I, D-II
  3. A-II, B-I, C-III, D-IV
  4. A-I, B-II, C-IV, D-III

A-III, B-lV, C-I, D-II

Q.91 Given below are two statements?

Statement I: Hybrids are heterozygous and homogenous

Statement II: Pure lines are heterozygous and heterogenous

In light of the above statements, choose the most appropriate answer from the options given below

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Statement I is correct but Statement II is false

Q.92 Given below are two statements?

Statement I: Kosambi’s mapping function considers the absence of interference (l)

Statement II: Halden’s mapping function considers the presence of interference (l)

In light of the above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Both Statement I and Statement II are false

Q.93 Water potential values of biological system are always?

  1. Positive
  2. Negative
  3. Both positive and negative
  4. Neutral

Negative

Q.94 Match List I with List II

List I List II
A. Dithiocarbamate I. Metalaxyl
B. Oxathin II. Fosetyl-al
C. Acylalanine III. Mancozeb
D. Organophosphate IV. Carboxin

Chose the correct answer from the options given below

  1. A (lV), B (III), C(II), D (I)
  2. A (I), B (II), C(III), D (IV)
  3. A (III), B (IV), C(II), D (I)
  4. A (III), B (IV), C (I) , D (II)

A (III), B (IV), C (I) , D (II)

Q.95 Two genes are linked or not can be ascertained by?

  1. F-test
  2. t-test
  3. Chi-square test
  4. Z-test

Chi-square test

Q.96 Given below are two statements:

Statement I: Active collection in the seed genebank is conserved for a medium period of 2-10 years. They are regularly used for research and distribution to bonafide users

Statement II: Base collections in the seed genebank are conserved for a long duration, 15 years or more for safety and prosperity

In light of the above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is True

Both Statement I and Statement II are true

Q.97 Which of the following crops are considered to have originated in South American Centre?

  1. Potato, Tomato, Tobacco, Rice
  2. Potato, Tomato, Tobacco, Maize
  3. Potato, Tomato, Sugarcane, Wheat
  4. Potato, Tomato, Soybean, Brinjal

Potato, Tomato, Tobacco, Maize

Q.98 Which of the following is a symbiotic nitrogen fixer?

  1. Clostridium
  2. Bradyrhizobium
  3. Azospirillum
  4. Azotobacter

Bradyrhizobium

Q.99 Match List I with List ll

List I List II
A. Double cross hybrid I. Standard heterosis
B. F1 hybrid II. Mid-parent heterosis
C. Average heterosis III. F1 (AxB)xF1 (CxD)
D. Economic heterosis IV Single cross hybrid

Choose the correct answer from the options given below:

  1. A-II, B-I, C-IV, D-III
  2. A-III, B-IV, C-II, D-I
  3. A-III, B-II, C-IV, D-I
  4. A-IV, B-I, C-III, D-II

A-III, B-IV, C-II, D-I

Q.100 In which of the following diseases, the symptom is spatially separated from the pathogen niche?

  1. Crown gall
  2. Die back
  3. Leaf spot
  4. Blight

Crown gall

Q.101 Match List I with List II

List I List II
A. Magnaporthe oryzae I. Stomata
B. Puccinia tritici II. Hydathodes
C. Xanthomonas axonopodis III. Wound
D. Agrobacterium tumefaciens lV. Direct penetration

Chose the correct answer from the options given below

  1. A (IV), B (I), c (III), D (II)
  2. A (I), B (II), C (III), D (IV)
  3. A (IV), B (II), C (III), D (I)
  4. A (I), B (IV), C(I), D (III)

A (IV), B (I), c (III), D (II)

Q.102 The allelic combination of the variety 1 is AAbbCCddEE and has the phenotype of 6 yield units. The allelic combination of variety 2 is aaBBccDDee and has 4 yield units. What would be the yield unit and heterosis (over the better parent) unit of the F1 (if there is complete dominance)?

  1. 1.6 and 4
  2. 10 and 6
  3. 10 and 4
  4. 4 and 4

10 and 4

Q.103 Given below are two statements:

Statement I: Mera Gaon Mera Gaurav Scheme under extension education was launched by Prime Minister Sh. Narender Modi with the theme ‘Lab to Land by asking scientists to adopt villages and remain in touch with them providing technical information to farmers and other aspects

Statement II: The scheme Mera Gaon Mera Gaurav functions with the help of Krishi Vigyan Kendra (KVKs) and Agriculture Technology Management Agencies (ATMA)

In the light of above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is True

Both Statement I and Statement II are true

Q.104 Match List I with List ll

List I List II
White rust I.Puccinia striformis
Black rust II. Albugo candida
Yellow rust III. Cephaleuros parasiticus
Red Rust IV. Puccinia tritici

Chose the correct answer from the options given below:

  1. A (I), B (II), c (III), D (IV)
  2. A (II), B (IV), C (I), D (III)
  3. A (IV), B (III), C (I), D (II)
  4. A (III), B (II), C (I), D (IV)

A (II), B (IV), C (I), D (III)

Q.105 Match List I with List II

List I List II
Fusarium oxysporum I. Microsclerotia
Macrophomina phaseolina II. Clamydospores
Bipolaris sorokiniana III. Thick-walled conidia
Ralstonia solanacearum IV. Naked cells

 Chose the correct answer from the options given below:

  1. A (III), B (I), C(II), D (IV)
  2. A (IV), B (I), C(III), D (II)
  3. A (II), B (I), C(III), D (IV)
  4. A (I). B (II), C (III), D (IV)

A (II), B (I), C(III), D (IV)

Q.106 In a crop, genes C and P are required for the development of color in the flowers. The white flowers are produced in the absence of either or both the genes. What will be the percentage of colored flowers in the off-springs of the cross CcPP x ccPp?

  1. 1.50%
  2. 25%
  3. 3.759%
  4. 100%

1.50%

Q.107 Identifty the correct statement(s) about speed breeding?

  1. A. It is targeted to reduce the breeding cycle of a crop
  2. B.It manipulates photoperiod and temperature to enhance crop maturity
  3. C. It is done in open field condition
  4. D. It was initially used to grow crops in the ‘space station’
  5. E.It increases both vegetative and reproductive phases of the plants

Choose the correct answer from the options given below:

  1. A, B, C only
  2. B, C, D only
  3. C, D, E only
  4. A, B, D only

A, B, D only

Q.108 Match List I with List II

List I List II
(Organisms) (Specific activity)
A. Mycorrhizae I. Autotrophic nitrification
B. Symbiosome II. Microaerophillic conditions
C. Azospirillum III. Symbiotic nitrogen fixation
D. Nitrosomonas IV. Phosphorous nutrition

Choose the correct answer from the options given below:

  1. A (I). B(II), c (IV), D (III)
  2. A (IV). B (III), C (I), D (II)
  3. A (IV), B (II), C (III), D (I)
  4. A (IV), B (I) , C (III), D (II)

A (IV). B (III), C (I), D (I)

Q.109 Stock 6 is a haploid inducer line of?

  1. Wheat
  2. Maize
  3. Rice
  4. Sorghum

Maize

Q.110 Match List I with List II

List I List II
(Plant) (Product)
A. Hevea brasiliensis I. Henna
B. Achras zapota II. Tannin
C. Lawsonia inermis III. Rubber
D. Schinopsis lorentzii IV.Chewing gum

Choose the correct answer from the options given below:

  1. A-III, B-IV, C-I, D-II
  2. A-I, B-III, C-II, D-IV
  3. A-II, B-I, C-III, D-IV
  4. A-IV, B-II, C-III, D-I

A-III, B-IV, C-I, D-II

Q.111 A type of mutualistic relationship in which individual of one species lives in close association with individual of another species is called?

  1. Symbiosis
  2. Parasitism
  3. Syntrophism
  4. Commensalism

Symbiosis

Q.112 Biogas production from cattle manure involves which of the follow ing types of bacteria?

  1. Hydrolytic
  2. Methanogenic
  3. Transitional

Choose the most appropriate answer from the options given below:

  1. A only
  2. B only
  3. C only
  4. A, B and C

A, B and C

Q.113 The possible number of triplet codons from 6 different types of nucleotides in the DNA molecule is?

  1. 1.(6)3
  2. 2.(3)6
  3. 3.(6)6
  4. 4.(3)3

1.(6)3

Q.114 With respect to chickpea, which of the following statement is INCORRECT?

  1. Chickpea is a rabi crop
  2. Heavy rains after sowing or at flowering and fruiting stage is useful
  3. The crop cannot tolerate frost at any stage of growth
  4. Chickpea is well adapted to arid and semi-arid regions and a cool and dry climate

Heavy rains after sowing or at flowering and fruiting stage is useful

Q.115 Which of the following plant cell organelles is considered as semi-autonomous?

  1. Endoplasmic reticulum
  2. Mitochondria
  3. Golgibody complex
  4. Lysosomes

Mitochondria

Q.116 Given below are two statements?

Statement I: Cis-trans test can assign mutant alleles to the same or different genes but cannot estimate the map distance

Statement II: Recombination frequency can be used to estimate map distance between mutant loci

In light of the above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

Q.117 Foliar plant pathogens are pigmented in nature and cause crop losses in major staple crops in the world as?

  1. Pigments help them to tolerate high radiation
  2. They cause diseases only on monocots
  3. They cause diseases only on dicots
  4. They move from one plant to another plant with the help of wind
  5. They cause polycyclic diseases

Choose the correct answer from the options given below

  1. A, B, C Only
  2. B, C, D Only
  3. C, D, E Only
  4. A, D, E Only

A, D, E Only

Q.118 In a sexually reproducing organism, the chromosome number in the progeny does not double even after fertilization. The reason is that the male and female gametes contain?

  1. Quarter set of somatic chromosomes
  2. Half-set of the somatic chromosomes
  3. Full set of the somatic chromosomes
  4. Inhibitor that destroys the extra chromosomes

Half-set of the somatic chromosomes

Q.119 Polycyclic diseases are usually caused by pathogens adapted?

  1. on foliar plant parts
  2. in soil
  3. in rhizosphere
  4. in phloem

on foliar plant parts

Q.120 Match List I with List II

List I List II
(Common name) (Botanical name)
A. Rosewood I. Shorea robusta
B. Sal II. Diospyros ebenum
C. Ebony III. Dalbergia latifolia
D. Teak IV. Tectona grandis

Choose the correct answer from the options given below:

  1. A-II, B-III, C-IV, D-I
  2. A-IV, B-II, C-III, D-I
  3. A-I, B-II, C-III, D-IV
  4. A-III, B-I, C-II, D-IV

A-III, B-I, C-II, D-IV

Plant science JRF 2020

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