Which statement about natural selection is true?

A. It can have an evolutionary effect only if phenotypic differences are heritable.
B. It is the same as evolution.
C. It acts directly on genotypes.
D. Changes in allele frequencies can occur only because of natural selection.
E. It always results in reduced genetic variation.


Ans: A. It can have an evolutionary effect only if phenotypic differences are heritable.

Biology & Microbiology

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