A mother is a carrier for blue eyes (autosomal recessive)and for hemophilia (X-linked recessive).Which of these is a correct statement?
A) All sons will have blue eyes and be hemophiliacs.
B) It depends on the father's genotype whether the sons will have blue eyes and/or be hemophiliacs.
C) The father's genotype can determine whether a son will have blue eyes but cannot determine whether a son will be a hemophiliac.
D) Regardless of the father, no sons will have blue eyes or be hemophiliacs.
E) There is a linkage between eye color and hemophilia.

Question

Quizplus · Accepted Answer

Mother's genotype is Bb X^HX^h. Because the mother has both of the possible alleles for eyecolor and both alleles for normal blood clotting or hemophilia then the genotype of the father will determine if the recessive blue allele is expressed (he must be able to pass on the b allele for a son to possibly have blue eyes) but the mother alone will determine if a son has hemophilia since she will pass on the only X chromosome that a son will have.Bloom's

A Mother Is a Carrier for Blue Eyes (Autosomal Recessive)and