Two alleles of gene C control hair color in horses: C¹ and C².Horses homozygous for allele C¹ are red, heterozygotes are yellow, and C² homozygotes are cream.In the offspring of matings between heterozygotes, what phenotypic ratio is expected?
A)2 yellow: 1 red
B)3 red: 1 cream
C)1 red: 2 yellow: 1 cream
D)all red
E)9 red: 3 yellow: 4 cream

Question

Quizplus · Accepted Answer

The expected phenotypic ratio from a cross between two heterozygotes (C¹C²) is 1 red (C¹C¹): 2 yellow (C¹C²): 1 cream (C²C²), following Mendelian inheritance principles for a single gene with two alleles exhibiting incomplete dominance.

Two Alleles of Gene C Control Hair Color in Horses