What produces the Y chromosome?

Where do Y chromosomes come from?

The X and Y chromosomes, also known as the sex chromosomes, determine the biological sex of an individual: females inherit an X chromosome from the father for a XX genotype, while males inherit a Y chromosome from the father for a XY genotype (mothers only pass on X chromosomes).

Where does a son get his Y chromosome from?

Humans inherit 23 pairs of chromosomes from their parents. Among them is the Y chromosome, which passes from father to son.

Where does a woman get her Y chromosome from?

Figure 3: Example set of male human chromosomes. In the image, the X and Y chromosomes are indicated by arrows. In humans, females inherit an X chromosome from each parent, whereas males always inherit their X chromosome from their mother and their Y chromosome from their father.

Can females produce Y chromosomes?

Most males have XY chromosomes and most women have XX chromosomes. But there are girls and women who have XY chromosomes. This can happen, for example, when a girl has androgen insensitivity syndrome.

Can a man only produce Y chromosomes?

The Y chromosome is present in males, who have one X and one Y chromosome, while females have two X chromosomes. Identifying genes on each chromosome is an active area of genetic research.

Which parent determines the gender of the child?

The father has one X chromosome and one Y chromosome, can give either his X or Y chromosome. The egg (from the mother) already contains an X chromosome. Therefore the sex of a baby is determined by the X or Y chromosome of the sperm cell from the father.

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