Your question: What is the 23rd chromosome?

MECHANISMS OF CHROMOSOME INSTABILITY RESULTING FROM TELOMERE LOSS

Does chromosome 23 determine gender?

Each person normally has 23 pairs of chromosomes in each cell (23 pairs = 46 total chromosomes). One of these pairs is called the sex chromosomes (X and Y). They determine if you will be male or female. If you are male, you have an XY pair.

What is the 23rd chromosome in the sperm cell?

The Y chromosome is one of the two sex chromosomes in humans (the other is the X chromosome). The sex chromosomes form one of the 23 pairs of human chromosomes in each cell. The Y chromosome spans more than 59 million building blocks of DNA (base pairs) and represents almost 2 percent of the total DNA in cells.

Which gamete determines the gender of the baby?

In humans, the sex of the baby is determined by the sperm. The sperm gamete is heterogamatic because approximately half of them contain the X chromosome which will result in a girl and approximately half of them contain the Y chromosome which will result in a boy.

Why do you think humans have two sets of 23 chromosomes?

Humans have two sets of 23 chromosomes because you get a set from your mother and the other set from your father, resulting in two sets. … Sex is determined by the presence or absence of a Y chromosome. Males have Y chromosomes while females do not.

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Which chromosome is responsible for determining gender?

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).

Can you be a girl with a XY chromosome?

The X and Y chromosomes are called “sex chromosomes” because they contribute to how a person’s sex develops. 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.