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Phenotypic Mutations

APBIO-VXH4UC

In rock pocket mice, a mutation in the gene for fur color results in black fur instead of the brown fur found in mice without the mutation. This mutation causes the mice to be more visible in areas of scrub.

Which of the following descriptions BEST fits our understanding of how phenotypic mutations affect populations?

A

The mice with the black fur mutation will be unlikely to survive and will disappear over time.

B

The black fur mutation will probably become very common in areas of scrub.

C

The black fur mutation might not be successful in scrub areas, but might be successful in areas with dark terrain.

D

The black fur mutation will probably continue to appear at the same frequency in all environments.