Sex-Linked Inheritance Problem Set

Problem 4: Predicting genotype when phenotype is known

What is the genotype of a red-eyed, yellow-bodied female fruit fly who is homozygous for the eye color allele?
Red eyes (w+) and tan bodies (y+) are the dominant alleles. (Both traits are X chromosome linked).

A.
The female is homozygous for dominant eye color (given), and homozygous for recessive body color allele.

B.

C.

D.

E.


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