The ultimate source of genetic variation within a population is:
A) mutations in DNA.
B) adaptation of a species to environmental changes.
C) homeostatic mechanisms that compensate for environmental changes.
D) a sensory system that can detect an environmental change.
E) a system of locomotion that allows an organism to escape environmental changes.

Question

Quizplus · Accepted Answer

Mutations in DNA are the original source of genetic variation, as they introduce new genetic changes that can be passed on to future generations.

The Ultimate Source of Genetic Variation Within a Population Is