In goats,the gene for coat color is on an autosome and light brown color is dominant to black.A light brown male is mated to a black female,producing a black kid (baby goat).If they produce another kid,could it be light brown? If so,what are the chances of it being light brown?
A)No,since the black allele is present all offspring will be black
B)Yes,100% since the first kid was black the next one has to be light brown
C)Yes,75% since light brown is dominant
D)Yes,50% as the male must be heterozygous for color
E)Yes,but it will depend on whether the kid is male or female

Question

Quizplus · Accepted Answer

If the light brown male is heterozygous for color (genotype Bb), then it would have one dominant light brown allele (B) and one recessive black allele (b). The black female must be homozygous for the recessive black allele (bb) in order to produce a black offspring. When the two parents mate, each offspring has a 50/50 chance of inheriting either the dominant light brown allele (B) or the recessive black allele (b). Therefore, the next kid could be light brown or black with a 50% chance each, assuming the male is heterozygous.

In Goats,the Gene for Coat Color Is on an Autosome