A zygote which has inherited an X chromosome from the father will develop into:(a) baby boy    (b) baby girl    (c) adult    (d) either boy or girl

Correct Answer: (b) baby girl

Explanation:

A zygote with an inherited X chromosome from father will develop into a baby girl.

In humans, every cell contains 23 pairs of chromosomes or 46 chromosomes. 

Out of these 46 chromosomes, 44 chromosomes are autosomes and 2 are sex chromosomes.

The two sex chromosomes in females are similar to each other and written as XX, while in male, they are dissimilar and mentioned as XY.

The gametes produced by females (ovum) contains all (22 + X) type of chromosomes, while male gametes (sperms) contains either (22 + X) or (22 + Y) type of chromosomes.

Therefore, the sex of the child is determined by the chromosome type of the father of the child and not by the mother of the child.
 

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Updated on: 21-Mar-2023

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