Question
Why is hemophilia more common in
males than in females?
Answer
Hemophilia is caused by a mutation on the X chromosome. Since males only have one X chromosome, if they inherit the mutated gene, they will develop hemophilia. Females, on the other hand, have two X chromosomes, so even if they inherit the mutated gene on one X chromosome, they may still have a normal gene on the other X chromosome, which can compensate for the mutation. Therefore, hemophilia is more common in males than in females.