In human beings, every somatic cell of the body contains $23$ pairs of chromosomes. Out of these $23$ pairs, the first $22$ pairs are known as autosomes and the remaining one pair is known as sex chromosomes represented as $X$ and $Y.$

Females have two $X$ chromosomes and males have one $X$ and one $Y$ chromosome. The gamete receives half of the chromosomes. Therefore, the male gametes have $22$ autosomes and either $X$ or $Y$ chromosome.

The female gamete, on the other hand, has $22$ autosomes and $X$ chromosome.

During reproduction, the male and female gametes fuse and thus the progeny receives $22$ autosomes and one $X$ or $Y$ chromosome from male parent and $22$ autosomes and one $X$ chromosome from the female parent.