Question

What are the gametes produced by a haemophilic male (XʰY)?

Options

• Xʰ and Y

• Xᴴ and Xʰ

• Xᴴ and Y

• Xʰ and Xʰ

Answer 1

A haemophilic male (XʰY) produces two types of gametes: Xʰ (carrying the recessive haemophilia allele) and Y (the male sex chromosome). Each gamete has a 50% probability of being passed to offspring, determining whether daughters become carriers or sons become affected.