Question

if a man has an x - linked recessive disease, can his sons inherit that disease from him?
no, all his sons have one x chromosome.
yes, all his sons inherit their y chromosomes maternally.
no, all his sons inherit their x chromosomes maternally.
yes, all his sons have one x chromosome.
yes, all his sons inherit their x chromosomes maternally.

Explanation:

• In humans, sons inherit their Y chromosome from their father and their X chromosome from their mother.
• Since the disease is X - linked recessive, and sons do not inherit the father's X chromosome (they inherit the father's Y chromosome), they cannot inherit the X - linked recessive disease from their father.

Answer:

No, all his sons inherit their X chromosomes maternally.