Biology for IGCSE & O level - Inheritance (Section 4 - No. 13)
Which of the following genetic conditions is most likely to affect males more frequently than females?
Autosomal dominant conditions
Autosomal recessive conditions
X-linked recessive conditions
X-linked dominant conditions
คำอธิบาย
X-linked recessive conditions are more common in males because they only need to inherit one copy of the affected allele on their X chromosome to express the condition, while females need two copies (one on each X chromosome).