Biology for IGCSE & O level - Inheritance (Section 6 - No. 33)
If a woman is a carrier for an X-linked recessive trait, and her husband does NOT have the trait, what is the probability their daughter will also be a carrier?
0%
25%
50%
100%
คำอธิบาย
The daughter has a 50% chance of inheriting her mother's recessive allele.