Coat color in mice is incompletely dominant Yellow YY and wh

Coat color in mice is incompletely dominant. Yellow (YY) and white-colored (WW) mice are homozygous, while cream-colored (YW) mice are heterozygous. If two cream-colored mice mate, what phenotypic ratio can we expect of their offspring?

Solution

Crossing the two cream colored mice:

YW X YW

We get: 1 YY (YELLOW COLORED)

2 YW (CREAM COLORED)

1 WW ( WHITE COLORED)

Hence, the ration is 1:2:1.