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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Aarif sir
The theory of sex chromosome evolution holds that sex chromosomes were once homologs (a pair of equivalent autosomes—the non-sex chromosomes) that evolved different morphology and gene content because they lost their ability to recombine. ... In the absence of recombination, the two chromosomes of a pair evolve separately.