List I | List II | ||
A. | Pairing of homologous chromosomes | I. | Chiasmata |
B. | Actual interchange of segments between two homologous chromosomes | II. | Synaptonemal complex |
C. | Protein body formed between paired homologs | III. | Synapsis |
D. | The cross shaped configuration visible between homologs | IV. | Crossing over |
A: | Tendency of parental combinations to remain together is called crossing over. |
R: | Crossing over provides proof in favour of the linear arrangement of genes on chromosomes. |
1. | If both Assertion & Reason are true and the reason is the correct explanation of the assertion.. |
2. | If both Assertion & Reason are true but the reason is not the correct explanation of the assertion. |
3. | If Assertion is a true statement but Reason is false.. |
4. | If both Assertion and Reason are false statements. |