In sheep, the allele for white wool (W) is dominant, and the allele for black wool (w) is recessive. A farmer has mated two Suffolk sheep for a few years. These matings have resulted in six offspring, four with white wool and two ith black wool. One parent has white wool and the other has black wool.Which of the following could be the genotypes of the parent sheep?

Question

Quizplus · Accepted Answer

Since one parent has white wool and the other has black wool, the black-wooled parent must have the genotype "ww" because black wool is recessive and can only be expressed in the homozygous recessive condition. The offspring include both white and black wool sheep, indicating that the white-wooled parent must be heterozygous (Ww) to pass on the recessive allele to some offspring. Therefore, the genotypes of the parents are Ww (white wool) and ww (black wool).

In Sheep, the Allele for White Wool (W) Is Dominant