What are the difference between Female and Male Genetic?

 About 20,000 genes are nearly identical in men and women. The sex chromosomes are the only physical distinction in their genetic makeup. The Y chromosome is only found in males. Although both sexes have the X chromosome, females have two copies and males have only one.

In many species, including mammals, the X chromosome is one of two sex-determining chromosomes (allosomes) found in both males and females. It is a component of both the XY and the XO sex-determination systems. Early researchers called the X chromosome for its distinctive features, which led to the subsequent discovery of its counterpart, the Y chromosome, which was named for the next letter in the alphabet. Males have one X and one Y chromosome, while females have two X chromosomes. One of the two X chromosomes is randomly and permanently inactivated in cells other than egg cells early in female embryonic development. This is referred to as X-inactivation or lyonization.

In therian mammals, such as humans and many other animals, the Y chromosome is one of two sex chromosomes (allosomes). The X chromosome is the other. In many organisms, Y is the sex-determining chromosome, as the presence or absence of Y determines whether offspring produced in sexual reproduction are male or female. The gene SRY, which controls male development in mammals, is found on the Y chromosome. The human Y chromosome contains around 59 million base pairs of DNA. Only the father and son share the Y chromosome. The Y chromosome is one of the most rapidly developing regions of the human genome, with a 30% difference between humans and chimps. The human Y chromosome has between 100 and 200 genes, with 45 to 73 of them coding for proteins. Except in cases of aneuploidy, such as XYY syndrome or XXYY syndrome, all single-copy Y-linked genes are hemizygous (present on just one chromosome).