Question

Which of the following statements about mutations is FALSE?
a. Mutations always decrease an organism's fitness.
b. Somatic cell mutations do not lead to evolution.
c. Mutations occur in all species.
d. Mutations are the ultimate source of all genetic variability.
e. Mutations can be induced via ultraviolet radiation.

Answer 1

Answer:

A: Mutations always decrease an organism's fitness.

Explanation:

Looking at the given options, the one that is false is option A because generally speaking, for a population whereby a trait is being exposed to stabilization of selection over time, the mean will certainly remain approximately the same.