How many sex chromosomes does a normal human inherit from father?

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Solution

The correct option is A 1
Each parent contributes to half of the genetic material in a child. 22 pairs of autosomes and one sex chromosome are contributed by each parent. Human females have XX chromosomes and males have XY chromosomes. The sperm may contain either X or Y chromosome. The sperm is the factor in deciding the sex of the child. If the sperm carries an X chromosome, it will fuse with the egg’s X chromosome to form a female. If the sperm carries a Y chromosome, it will result in a male child. Thus, the correct answer is option A.

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