Hemophilia is a sex-linked, recessive genetic disorder. Why are males more likely to be affected by the disorder than females?(1 point)

Question

Responses

The mutation is found only on the Y chromosome, so it affects males more.
The mutation is found only on the Y chromosome, so it affects males more.
The mutation is found only on the Y chromosome, so females cannot get the disorder at all.
The mutation is found only on the Y chromosome, so females cannot get the disorder at all.
The mutation is found on the X chromosome, and since males only have one X chromosome, they only need one copy of the mutated gene to have the disorder.
The mutation is found on the X chromosome, and since males only have one X chromosome, they only need one copy of the mutated gene to have the disorder.
The mutation is found on the X chromosome, and since males have two X chromosomes, they are twice as likely to get the disorder.
The mutation is found on the X chromosome, and since males have two X chromosomes, they are twice as likely to get the disorder.

Answer 1

The correct response is:

The mutation is found on the X chromosome, and since males only have one X chromosome, they only need one copy of the mutated gene to have the disorder.

This explains why males are more likely to be affected by hemophilia, as they have only one X chromosome (XY), while females have two (XX). A female would require two copies of the mutated gene (one on each X chromosome) to express the disorder, making it less likely for her to be affected compared to a male who only needs one affected X chromosome.