NEET Biology question
In a gene pool, along with beneficial mutations those mutations also exists which are damaging to an individual. It has been found that these mutations are irreversible because I. they have survival value; II. they are acquired; III. they are recessive and carried by heterozygous individuals only; IV. they show genetic drift. Choose the (statement that is) correct option from the given statements.
Solution
Harmful mutations persist in the gene pool because they are mostly recessive and remain masked (hidden from natural selection) in heterozygous carriers, who are phenotypically unaffected and continue to reproduce normally — this is precisely what statement III describes, and it is the single correct explanation among
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