Question

sex-linked, recessive traits inculding hemophilia and colorblindness are common in males. Which statement explains this phenomenon? A.Males have two X chromosomes. B.Most of the genes on the X and Y chromosomes of males are recessive. C. In males, the recessive sex-linked genes appear only on the Y chromosome. D.Males have only one X chromosome, and if affected, the recessive trait will appear

Answer 1

D, if their only X chromosome is affected by a certain condition, they will inherit the condition because they don't have another X chromosome.