Why is hemophilia considered to be a sex-linked trait?

1 Answer

The gene of hemophilia disease is found on the sex chromosomes.

Explanation:

The gene of hemophilia disease is found on the 'X' sex chromosome. The gene of this disease is recessive and requires both recessive form for expression.
So, generally, it appears in male, where only one 'X' chromosome is found. The female works as the carrier of theis gene. Thank you