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EastWind [94]
3 years ago
8

Crossing over, or recombination, is thought to be evolutionarily advantageous because it continually shuffles genetic alleles in

to novel combinations. Until recently, it was thought that Y-linked genes might degenerate because they have no homologous genes on the X chromosome with which to recombine. However, when the Y chromosome was sequenced, eight large regions were found to be internally homologous to each other, and quite a few of the 78 genes represent duplicates. How might this be beneficial?
Biology
1 answer:
ki77a [65]3 years ago
5 0

Answer: Segmental duplication

Explanation:

Most of the times, segmental duplicarions occurs to preserve/conserve important regions on the chromosome to avoid extinction. If perhaps a damage occurs in one particular region that has a duplicate, the duplicate is present to help conserve the functions of the damaged regions.

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