Question

Phenotype ChangesA population of mice live in an area. Some of the mice have brown fur, and some of the mice have a mutation that causes them to have white fur. A small section of the genome is shown for a brown mouse and a white Which is true of mutations?

A.
Mutations maintain genetic continuity.

B.
Mutations do not result in protein synthesis.

C.
Mutations can introduce phenotypic variation.

D.
Mutations prevent translation and transcription.

Answer 1

C. Mutations can introduce phenotypic variation.

Explanation: A mutation changes the DNA sequence and can create a new allele that changes a protein's structure or expression, producing different traits (e.g., white vs. brown fur). Mutations do not inherently prevent transcription/translation and they do not "maintain" the original genetic sequence.