Question

Why do affected males of X-linked traits not pass down the trait to their sons? a.)...

Why do affected males of X-linked traits not pass down the trait to their sons?

a.) males are more sensitive to mutations than females

b.) males have one X chromosome

c.) males are not predominantly affected

d.) males transmit their Y chromosome to their sons

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Answer #1

Correct option is

Males have one x- chromosome

In x-linked recessive trait males can not pass/inherite the disease from father to son because due to the presence of only one x chromosome(recessive) it can not transmit disease.

The males passes x chromosome to females and female are having two x chromosomes. So, it acts as carrier.

If carrier female marries a normal male the disease is transmited from female to male.

Male have more chances of affecting than female.

Skip of generation is seen.

Ex; Colour bindness

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