The breeding example of White Leghorn chickens and White Wyandotte chickens, in which more than one gene controls pigment production, is an example of _____ interactions between genes.
A)epistatic
B)incomplete dominance
C)variable expressivity
D)recessive
E)dominant

Question

Quizplus · Accepted Answer

Epistasis is a type of gene interaction in which the expression of one gene affects the expression of another gene. In the example of White Leghorn chickens and White Wyandotte chickens, the gene that controls pigment production in Leghorn chickens is epistatic to the gene that controls pigment production in Wyandotte chickens. This means that the expression of the Wyandotte gene for pigment production is dependent on the presence or absence of the Leghorn gene. Therefore, this is an example of epistatic interactions between genes.

The Breeding Example of White Leghorn Chickens and White Wyandotte