The variation of the color in Siamese cats is due to
A)incomplete codominance.
B)inactive X chromosomes.
C)environmental effects on phenotypes.
D)quantitative inheritance.
E)multiple alleles.

Question

Quizplus · Accepted Answer

The color variation in Siamese cats is due to temperature-sensitive enzyme activity, which is an environmental effect on phenotypes. The enzyme responsible for pigment production is active in cooler areas of the body, leading to darker fur in those regions.

The Variation of the Color in Siamese Cats Is Due