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  4. Given diagram shows a pair of homologous chromosomes during meiosis. Maximum crossing over will occur between genes

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Q. Given diagram shows a pair of homologous chromosomes during meiosis.
Maximum crossing over will occur between genesBiology Question Image

Principles of Inheritance and Variation

Solution:

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.