試題詳解

14. Glucose-6-phosphate debydrogenase deficiency (G6PD) is inherited as an X-linked recessive allele in humans. A woman whose father had GoPD is planning a family with a man who has no history of the disease. What proportion of their sons are expected to have the disease?
(A)100%
(B) 1/4
(C)1/2
(D) 0