In domestic chickens, some males display a plumage pattern called cock feathering. Other males and all females display a pattern called hen feathering. Cock feathering is an autosomal recessive trait that is exhibited in males only.
-Two birds heterozygous for cock feathering are mated. What are the phenotypes of the parents?
A) male with cock feathering, female with hen feathering
B) male with hen feathering, female with cock feathering
C) male with cock feathering, female with cock feathering
D) male with hen feathering, female with hen feathering
E) cannot be determined from the information given

Question

In domestic chickens, some males display a plumage pattern called cock feathering. Other males and all females display a pattern called hen feathering. Cock feathering is an autosomal recessive trait that is exhibited in males only. 
-Two birds heterozygous for cock feathering are mated. What are the phenotypes of the parents?
A) male with cock feathering, female with hen feathering
B) male with hen feathering, female with cock feathering
C) male with cock feathering, female with cock feathering
D) male with hen feathering, female with hen feathering
E) cannot be determined from the information given

Quizplus · Accepted Answer

Since cock feathering is autosomal recessive and only exhibited in males, heterozygous males will have hen feathering. Heterozygous females will also have hen feathering.

In Domestic Chickens, Some Males Display a Plumage Pattern Called