JNKVV & RVSKVV PhD Entomology Entrance Exam 2023
JNKVV & RVSKVV PhD Entomology Entrance Exam 2023
Q1. Which part of the exoskeleton is composed of living cells?
- Procuticle
- Epidermis
- Cuticulin layer
- Basement membrane
Q2. Which of the following pest belongs to family Dermestidae?
- Sitophilus oryzae
- Trogoderma granarium
- tribolium casteneum
- latheticus oryzae
Q3. What is the function of the wax layer?
- Protection – armor
- Muscle attachment
- Thermal insulation
- Water conservation
Q4. Rigid, inflexible regions of the exoskeleton are called:?
- Sutures
- Apodemes
- Sclerites
- Segments
Q5. A suture is best described as:?
- A junction between two sclerites.
- A thick ridge of cuticle
- A point of attachment between segments
- A membranous bridge
Q6. Which of the following is parasitic protozoan attacking silkworm?
- Leptomonas pyrrhocoris
- Malpighamoeba mellifica
- Adeline tipulae
- Nosema bombycis
Q7. Which is the major chemical component of an insect’s exoskeleton?
- Protein
- Lipid
- Chitin
- Cellulose
Q8. The entomogenous fungi tested under field conditions in India?
- Metarrhiizium anisopliae
- Entomophthora virulenta
- Beauveria bassiana
- All of the above
Q9. Which structure is unicellular?
- Spine
- Seta
- Gland
- Sclerite
Q10. Which structure could be found in both males and females?
- Valvifer
- Aedeagus
- Epiproct
- Clasper
Q11. Which structures are NOT endocrine organs?
- Corpora cardiaca
- Prothoracic glands
- Salivary glands
- Carpora allata
Q12. Which hormone is produced by neurosecretory cells in the brain?
- Prothoracicotropic hormone
- Ecdysone
- Eclosion hormone
- Juvenile hormone
Q13. Vertical resistance is also called -?
- Oligogenic
- Specific
- Monogenic
- All of the above
Q14. Which hormone stimulates release of PTTH from the corpora cardiaca?
- Brain hormone
- Eclosion hormone
- Bursicon
- Juvenile hormone
Q15. During a molt, what is the correct sequence of hormones that appear in the blood?
- Eclosion hormone, PTTH, Bursicon, Ecdysteroids
- PTTH, Ecdysteroids, Eclosion hormone, Bursicon
- Ecdysteroids, Eclosion hormone, PTTH, Bursicon
- PTTH, Ecdysteroids, Bursicon, Eclosion Hormone
Q16. Which of the following is larval parasitoid -?
- Xanthopimpla
- Tetrastichus
- Apanteles
- None of the above
Q17. If you were to carefully remove the prothoracic glands from a larva, you would expect it to:?
- Molt into another larval instar
- Pupate and then emerge as a sterile adult
- Pupate and then emerge as a normal adult
- Never molt again
Q18. Which hormone would have a high titer (concentration) in the larva and the adult, but a lower titer in the pupa?
- Brain hormone
- Juvenile hormone
- Eclosion hormone
- Ecdysteroids
Q19. If the corpora allata are removed from an adult female insect immediately after she emerges from the pupal stage, she will:?
- Become another pupa
- Become a larva
- Become sterile
- Molt once more as an adult
Q20. Which structure lies between the crop and the gastric caecae?
- Colon
- Pyloric valve
- Proventriculus
- Esophagus
Q21. What structure protects the midgut from abrasion by food particles?
- Intima
- Peritrophic membrane
- Proventriculus
- Pyloric valve
Q22. Which structure collects and excretes uric acid?
- Malpighian tubule
- Rectal pad
- Accessory gland
- Proventriculus
Q23. Most enzymatic digestion occurs in the:?
- Midgut
- Gastric caecae
- Proventriculus
- Crop
Q24. Vector of bean mosaic disease is 😕
- Myzus persical
- Bemisia tabaci
- Agromyza obtuse
- Dacus zonatus
Q25. Which part of the digestive system prevents excessive water loss in terrestrial insects?
- Proventriculus
- Gastric caecae
- Rectal pads
- Accessory glands
Q26. Which structure would probably NOT be found in an insect that has a continuous supply of food?
- Gastric caecae
- Malpighian tubules
- Intima
- Crop
JNKVV & RVSKVV PhD Entomology Entrance Exam 2023
Q27. Which structure would probably NOT be present in an insect that feeds exclusively on blood?
- Crop
- Proventriculus
- Gastric caecae
- Rectum
Q28. What is the principle energy source for most insects?
- Proteins
- Cellulose
- Carbohydrates
- Vitamins
Q29. White ear-head in paddy is caused by?
- Yellow stem borer
- Green leaf hopper
- Gall fly
- None of these
Q30. Which of these are regarded as “functional units” of the nervous system?
- Nerves
- Ganglia
- Synapses
- Neurons
Q31. The only pest that has developed resistance to Bacillus thuringiensis in the field conditions?
- Helicoverpa armigera
- Plutella xylostella
- Spodoptera litura
- All of the above
Q32. Which of the following is not correct with regard to pyrethrins ?
- They have quick knock down effect
- They are degraded by sunlight
- They are nerve poisons
- They are obtained from roots of Chrysanthemum sp.
Q33. How many pairs of ganglia have fused together to form the insect’s brain?
- Two
- Three
- Four
- Six
Q34. A commissure is a nerve that connects:?
- The brain with the subesophageal ganglion
- Paired ganglia within the same body segment
- The tritocerebrum to the frontal ganglion
- The frontal ganglion with the hypocerebral ganglion
Q35. Which structures are innervated by the protocerebrum?
- Compound eyes and ocelli
- Antennae
- Mouthparts
- Bursa copulatrix
Q36. Which structures are innervated by the deutocerebrum?
- Compound eyes and ocelli
- Antennae
- Mouthparts
- Bursa copulatrix
Q37. Which ganglion regulates flight activity in a house fly?
- Hypocerebral
- Mesothoracic
- Caudal
- Subesophageal
Q38. Which statement about the insect’s nervous system is INCORRECT?
- The ventral nerve cord controls the legs and wings
- The caudal ganglion controls the external genitalia
- The brain controls the eyes and antennae
- The stomodeal nervous system controls the mouthparts
Q39. Pest papulation at which control measures has to be initiated?
- EIL
- ETL
- GEP
- None of these
Q40. The heart lies along the:?
- Above of the digestive tract
- Ventral side of the body
- Dorsal side of the body
- Left side of the body
Q41. One-way flow valves in the heart are called:?
- Ostia
- Pulsatile organs
- Apodemes
- Spiracles
Q42. A blood sinus is best described as:?
- An allergic reaction by an insect
- A body cavity where blood moves freely
- A region of the heart that collects blood
- A pulsating organ near the base of the wings
Q43. The term ‘Fourth generation pesticides’ refers to?
- Anti juvenile hormones
- Juvenile hormone
- Moulting hormones
- Anti moulting hormones
Q44. Which of these do NOT circulate through the blood of an insect?
- Molting hormones
- Antibodies
- Nutrients
- Nitrogenous waste products
Q45. The tracheal system of an insect is best described as:?
- A network of hollow tubes
- A method of anaerobic respiration
- A chain of interconnecting cells
- A radial pattern of filaments
Q46. Which structure is NOT part of an insect’s tracheal system?
- Sinus
- Taenidia
- Spiracle
- Tracheole
Q47. What structures regulate air flow into and out of the tracheal system?
- Ostia
- Taenidia
- Spiracles
- Tracheole
Q48. The tracheal tubes are filled with:?
- Hemolymph
- Water and salts
- Cytoplasm
- Atmospheric air
Q49. Taenidia prevent the respiratory system from:?
- Filling with water in aquatic insects
- Collapsing under external pressure
- Transporting carbon dioxide to body tissues
- Losing water by evaporation
Q50. A chemical which give adaptive advantage to the receiver but not to the emitter is called?
- Kairomone
- Apneumone
- Pheromone
- Synomone
Q51. Movement of oxygen in the tracheal system is:?
- Mostly due to diffusion
- Assisted by contraction of the tracheoles
- Retarded by air sacs
- Faster in the abdomen than in the throax
Q52. Gills allow aquatic insects to utilize oxygen that is?
- Dissolved in the surrounding water
- Trapped in the tissues of aquatic plants
- Located in the air overhead
- Generated by metabolic activity
Q53. Type of parasitism where the host is attacked by two or more species of parasitoids is known as?
- Hyper parasitism
- Multiple parasitism
- super parasitism
- simple parasitism
Q54. Which structure is NOT part of the female reproductive system?
- Follicle
- Accessory gland
- Spermatheca
- Bursa copulatrix
Q55. Which of these is found ONLY in the male reproductive system?
- Seminal vesicle
- Accessory gland
- Spermathecal gland
- Primary germ cells
Q56. Each ovariole contains:?
- A single follicle
- Many primary oocytes
- More than one developing egg
- Stored sperm for selective reproduction
Q57. In male insects, sperm is stored in the?
- Spermatheca
- Accessory glands
- Seminal vesicles
- Bursa copulatrix
Q58. After an egg leaves the ovary, it passes through the:?
- Accessory gland
- Seminal vesicle
- Spermathecal gland
- Bursa copulatrix
Q59. When insects remain in dormant stage due to temperature lower then the optimum, they are said to have undergone?
- Aestivation
- Hibernation
- Quiscence
- All of these
Q60. Sometimes an egg develops without being fertilized by a member of the opposite sex. This type of reproduction is known as:?
- Ovipary
- Parthenogenesis
- Paedogenesis
- Ovovivipary
Q61. Who is considered as father of taxonomy?
- Aristotle
- Linnaeus
- Mayer
- Darwin
Q62. Insects that become sexually mature and produce offspring before they molt into adults are said to be:?
- Paedogenic
- Embryonic
- Parthenogenic
- Viviparous
Q63. Which part of the exoskeleton lies between the exocuticle and the wax layer?
- Cuticulin layer
- Endocuticle
- Procuticle
- Cement layer
Q64. The pedicel is the name for the:?
- First leg segment
- Second leg segment
- First antennal segment
- Second antennal segment
Q65. What is the maximum number of ocelli that may be found in an adult insect?
- Zero
- Three
- Five
- Twenty
Q66. In insects with chewing mouthparts, which structure lies between the mandibles and the maxillae?
- Clypeus
- Hypopharynx
- Labium
- Labrum
Q67. Which mouthparts bear palps?
- Labrum and labium
- Labium and maxillae
- Maxillae and mandibles
- Mandibles and labrum
Q68. Which is the correct sequence for the layers in an insect’s exoskeleton?
- Procuticle, epicuticle, endocuticle
- Exocuticle, cuticulin layer, endocuticle
- Wax layer, cuticulin layer, exocuticle
- Wax layer, endocuticle, exocuticle
Q69. In which region of the exoskeleton do quinone cross-linkages form?
- Endocuticle
- Exocuticle
- Procuticle
- Epicuticle
JNKVV & RVSKVV PhD Entomology Entrance Exam 2023
Q70. The larva of mosquoites commonly referred as?
- Crawlers
- Tumblers
- Wrigglers
- Dancers
Q71. An apophysis is best described as:?
- An invagination of the exoskeleton
- Part of the male genitalia
- An internal brace in the head
- Part of an insect’s pretarsus
Q72. Which statement about wing veins is INCORRECT?
- Veins are laminated between a double layers of membrane.
- Veins are hollow and contain hemolymph
- The costa is a vein that forms the wing’s leading edge
- Longitudinal veins are parallel to one another and lie in a single plane
Q73. Which of these events occurs FIRST during development of an insect egg?
- Differentiation of germ layers
- Enlargement of the germ band
- Segregation of the germ cells
- Migration of the cleavage nuclei
Q74. Which statement about germ cells is CORRECT?
- They form the embryo
- They differentiate into organ systems
- They become the three germ layers
- They form the eggs and sperm of the next generation
Q75. Which part of the embryo develops LAST?
- Head
- Mouthparts
- Legs
- Abdomen
Q76. The region of cuticle associated with insect defense – recognition of ‘self’ and ‘non self’?
- Exocuticle
- Endocuticle
- Epicuticle
- Basement membrane
Q77. The specialized cells harbouring endosymbionts in insects?
- Nephrocytes
- Trophocytes
- Mycetocytes
- Phagocytes
Q78. The secretion of the following glands are associated with softening of wax in honey bees?
- Glands in the 4th abdominal segment
- Glands in 4th to 7th abdominal segments
- Mandibular glands
- Alkaline glands
Q79. Glands associated with production of royal jelly in honey bees?
- Lateral pharyngeal glands
- Mandibular glands
- Salivary glands
- Accessory glands
Q80. Glands which produce silk in silkworm?
- Labial glands
- Pharyngeal glands
- Maxillary glands
- Accessory reproductive organs
Q81. The hormone involved in cuticle hardening?
- Cuticulin
- Bursicon
- Ecdysone
- Juvenile hormone
Q82. The sex pheromones in silk moth are produced from?
- Exocrine glands
- Endocrine glands
- Accessory reproductive organs
- Antennal glands
Q83. The trail pheromone in ants is an?
- Exocrine secretion
- Endocrine secretion
- Defensive secretion
- Salivary secretion
Q84. Peritrophic membrane is?
- A protective layer surrounding gut
- External layer of intestine
- Internal membrane of intestine
- None of the above
Q85. Web spinners belongs to which of the following insect order?
- Embioptera
- Pscocoptera
- Dermaptera
- Orthoptera
Q86. Glycogen is best defined as a:?
- storage form of lipids
- storage form of glycerol
- polymer of lactose
- polymer of glucose
Q87. Complete the equation: glucose + fructose= ———- ?
- Maltose
- Sucrose
- Cellulose
- Lactose
Q88. The legs of mole cricket belongs to………..?
- Raptorial
- Fussorial
- Cursorial
- Saltatorial
Q89. The chitin in insect is a polymer of?
- N-Acetyl glucosamine
- N-Acetyl Galactosamine
- Cuticulin
- Glucuranic acid
Q90. One name has been given to two or different taxa is known as?
- Synonym
- Homonym
- Tautonym
- Holonym
Q91. The undirected movement of insects in relation to light is called as?
- Klinotaxis
- Klinokinesis
- Phototaxis
- Photokinesis
Q92. An inverted pyramid food web is obtained?
- Primary producers are small
- Primary producers are large
- Parasitic food web
- Grassland ecosystem
Q93. Groups or clusters of species that have a similar or comparable role in the community is called as?
- guild
- functional niche
- realized niche
- microhabitat
Q94. Which insect order is never associated with plants?
- Hymenoptera
- Thysanoptera
- Hemiptera
- Siphonaptera
Q95. Okra fly belongs to?
- Gelchidiae
- Pterophoridae
- Agromyzidae
- Muscide
Q96. A pupa having free appendages is called?
- Obtect
- Chrysalis
- Exarate
- Coractate
Q97. The study of relationship between individual species to its environment?
- Synecology
- Biome ecology
- Autecology
- Community ecology
Q98. Seasonal mass movement of entire population where some insects return to the area from which they moved?
- Migration
- Emigration
- Immigration
- Aggregation
Q99. Functional role of the organism in the community is called?
- Habitat
- Niche
- Habit
- Spatial habitat
Q100. Imitation by a palatable species of the unpleasent one to avoid predation is called?
- Altruism
- Polymorphism
- Mullerian mimicry
- Batesian mimicry
JNKVV & RVSKVV PhD Entomology Entrance Exam 2023
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