Question

A man can inherit his X - chromosome from his

a.) Maternal grandfather or maternal grandmother

b.) Father

c.) Maternal grandfather

d.) Paternal grandfather

e.) Paternal grandmother

Answer 1

a.) Maternal grandfather or maternal grandmother
A man has x and y chromosome
woman has x chromosome only

So man can inherit x only from female because male already given Y since he is a man
From maternal
That mother can obtain either it from Grand mother or grand father because 2 x chromosome present one from father and one from mother
So answer is
a.) Maternal grandfather or maternal grandmother