Question

The original source of genetic variation that serves as the raw material for evolution is ________.

(a) mutation
(b) genetic drift
(c) gene flow
(d) sexual recombination
(e) random fertilization

Answer 1

(a) mutation

Step-by-step explanation:

A mutation is defined as a change in an individual's DNA, these mutations can be transmited in gametes and therefore they modify the gene pool of a population, over long time the accumulation of these mutation can lead to evolution.

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