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Given diagram shows a pair of homologous...

Given diagram shows a pair of homologous chromosomes during meiosis

Maximum crossing over will occur between genes

A

A and a,D and d

B

C and d, c and D

C

B and c, b and C

D

A and d, a and D

Text Solution

Verified by Experts

The correct Answer is:
D
Increase in distance between two genes increases the frequency of crossing over while closeness of the genes reduces the chances of crossing over. Since A and d and a and D are located far away, maximum crossing over would occur between them.
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NCERT FINGERTIPS ENGLISH-PRINCIPLES OF INHERITANCE & VARIATION-Principles Of Inheritance & Variation
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