A small minority of mutations is adaptive,providing an improvement to the gene pool of the population.

Question

Quizplus · Accepted Answer

It is true that only a small fraction of mutations are adaptive, which means they provide a selective advantage to the organism, and as a result, may increase in frequency in the population. The majority of mutations are either neutral or deleterious, and may be eliminated from the gene pool through natural selection or genetic drift.

A Small Minority of Mutations Is Adaptive,providing an Improvement to the Gene