How is the sex determined in human beings?

Explanation

In human beings, XY Type of sex-determination is seen.
The males have an X-chromosome and another small, but characteristically shaped Y. chromosomes, i.e., males have XY chromosomes along with other autosomes.
• The females have two X-chromosomes alongwith the other autosomes.
• It is a case of male heterogamety, where the males produce two types of sperms, 50% of sperms having one X-chromosome and the other 50% with one Y-chromosome
• The females are homogametic and produce all ova with one X-chromosome
. Sex of an individual is decided at the time of fertilization by the type of sperm fertilizing the ovum.