White eye is a recessive X-linked mutant in fruit flies. A wild type male is mated...

White eye is a recessive X-linked mutant in fruit flies. A wild type male is mated to a white-eyed female. What is the probability that an F1 son will be white eyed?

A. 0

B. 0.25

C. 0.5

D. 0.75

E. 1.0

Expert Solution

Answer

X linked white eye recessive mutant will express when there is both the X chromosome contains white eye mutation allele.

In male there is two chromosomes X and Y.

So in male if X chromosome have white eye allele then all male or son are white eyed male.

X linked recessive mutation is seen in homozygous female having both chromosome contain mutatnt allele.while in male if only one x chromosomae have mutatnt allele then male is seen to be mutant phenotype.

The correct answer is option (E) probability is 1 to be all sons are white eyed.

gladiator answered 6 months ago

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