Question

One of the touted advantages of sexual reproduction is the clearance of deleterious mutations.

What mechanisms are involved in clearance?

Describe them and illustrate the process by which a deleterious mutation—say, the allele A_bad—is cleared.

Why doesn’t clearance typically occur in asexual species?

Answer 1

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(A) The clearence of deleterious genes in sexual reproduction is by the process of natural selection.

• According to Darwin's theory of evolution., natural selection may be defined as the process by which the organisms which are better adaptive to a particular kind of environment tends to survive, leading in the elimination of the organism less adaptive to that environment. These organisms are naturally selected reproduce to pass on their genetic qualities suitable to that environment making their species best suitable to that particular environment.

(B) Asexual reproduction produces offspring that are copies of the parent, thus there is no resorting of genetic material.

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