A primary source of genetic variability is mutation. Which of the following statements is TRUE?
A) Mutation is a change in the DNA sequence of an organism.
B) Mutations are more likely to influence structural genes than regulatory genes.
C) Somatic mutations can be passed on to offspring.
D) Variation produced by a mutation is almost always advantageous.

Question

Quizplus · Accepted Answer

Mutation is indeed a change in the DNA sequence of an organism, which can introduce genetic variability.

A Primary Source of Genetic Variability Is Mutation