Chromosome Related Question & Answer 
Chromosome One Liner
| Question | Answer | |
| 1 | Chromosome is? | Nucleoprotein |
| 2 | Thread like bodies that carry gene? | Chromosome |
| 3 | Who firstly discovered chromosome? | Strasburger (1875) |
| 4 | Who coined the term c.hromosome? | Waldeyer (1888) |
| 5 | Chromosomal theory of inheritance (1903) was given by? | Sutton & Bovery |
| 6 | What is the fundamental unit of c.hromosome? | Chromatin |
| 7 | The major genetic constituent of c.hromosome? | DNA |
| 8 | Movement of chromosomes during cell division is controlled by? | Centromere |
| 9 | Physical chromosomal exchange (crossing over) takes place in? | Pachytene |
| 10 |
The central portion of the chromosome to the spindle fibbers attach during mitotic and meiotic division is?
|
Centromere |
| 11 | Which part of the c.hromosome is known as primary constriction? | Centromere |
| 12 | Exchange of chromatin between non-sister chromatids of homologous chromosomes is known as? | Crossing over |
| 13 | Life was first originated in water the theory of genes in the chromosomes was introduced by? | Morgan |
| 14 | c.hromosome number doubled in crop plants by using? | Colchicine |
| 15 | A cell contains genetically identical two copies of each c.hromosome? | Double haploid |
| Question | Answer | |
| 16 | Genes for sex-linked traits are located on? | “Y” chromosome |
| 17 | How many pairs of homologous chromosomes do humans have? | 23 |
| 18 | Basic chromosome/ Genomic number is? | X |
| 19 | Genetic chromosome number is? | n |
| 20 | Haploid no. of Triticum aestivum? | n = 21 |
| 21 | Heteroploid in which one or few chromosomes or missing from 2n? | Aneuploid |
| 22 | Monosomic hypoploid? | 2n -1 |
| 23 | Double monosomic? | 2n-1-1 |
| 24 | Nullisomic? | 2n-2 |
| 25 | Hyperploid have one extra c.hromosome? | Trisonic (2n+1) |
| 26 | Double trisomic? | 2n+1+1 |
| 27 | Tetrasomic? | 2n+2 |
| 28 |
Double Tetrasomic?
|
2n+2 |
| 29 | Polyploidy level in embryo and endosperm of seed? | 3n |
| 30 | Polyploidy level of testa and pollen mother cell of seed? | 2n |
| 31 | Changes in the genome with reference to individual chromosome? | Aneuploidy |
| 32 | Polyploidy level in endosperm of Triticum aestivum? | 63 |
| 33 | Triploids are useful for? | Seedless fruits |
| 34 | A self replicating, extra-chromosomal genetic material found in plant cell? | Plastids |
| 35 | The structure of chromosome can be best observed during? | Metaphase |
| 36 | Two successive spindle using divisions reduce the chromosome number fron diploid to haploid in? | Meiosis |
| 37 | A stage of spindle using cell division during chromosomes arearranged at the equatorial plate is? | Metaphase |
| 38 | A stage of spindle using cell division in the chromosomes reach opposite poles is? | Telophase |
| 39 | A stage of spindle using cell division during chromosomes become shorter and thicker is? | Prophase |
| 40 | A stage of spindle using cell division during chromosomes/chromatids move towards opposite poles is? | Anaphase |
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