Answer:
It affects one sex because of the X chromosomes.
Explanation:
A male with a mutation in a gene on the X chromosome is typically affected with the condition. Because females have two copies of the X chromosome and males have only one X chromosome, X-linked recessive diseases are more common among males than females.
I'd say the third sentence sounds very supportive, it supports the idea and positivity that service brings.
Should high school attendance be required