Question

Glucose-6-phosphate dehydrogenase (G6PD) deficiency is inherited as an X-linked recessive gene

in humans. A woman whose father suffered from G6PD marries a normal man. What percentage
of their sons is expected to be G6PD?
A) 100%
B) 75%
C) 25%
D) 50%

Answer 1

Sons of a woman whose father suffered from G6PD deficiency have a 50% chance of inheriting the deficiency.

Step-by-step explanation:

G6PD deficiency is an X-linked recessive gene. When a woman whose father suffered from G6PD deficiency marries a normal man, their sons have a 50% chance of inheriting the G6PD deficiency. This is because the woman carries the recessive gene on one of her X chromosomes, and there is a 50% chance that she will pass it on to her sons.