Suppose you discovered a new mutation in mice that causes a curved spine.You noticed that this mutation is seen only in females.When curved-spine females are crossed with normal males, the progeny are always recovered in the ratio: 1/3 curved-spine females, 1/3 normal females, 1/3 normal males.Explain the genetic basis for this ratio.
A)Lethal autosomal allele
B)Lethal sex-linked allele
C)Recessive sex-linked allele
D)Recessive autosomal allele
E)Dominant sex-linked allele

Question

Quizplus · Accepted Answer

The mutation is seen only in females and when curved-spine females are crossed with normal males, the progeny are always recovered in the ratio: 1/3 curved-spine females, 1/3 normal females, 1/3 normal males. This suggests that the mutation is a lethal sex-linked allele.

Suppose You Discovered a New Mutation in Mice That Causes