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The body cells of most humans have 46 chromosomes, which can be arranged into 23 pairs. One chromosome in each pair comes from the mother and the other chromosome comes from the father. Of the 23 pairs, 22 pairs (the body chromosomes, or autosomes) are the same in males and females. The 23 rd pair, called the sex chromosomes, is different in males and females. In females, the sex chromosomes are the same and are called X chrosomes. In males, the sex chromosomes are different. One is an X chromosome (inherited from your mother or your father) and the other is a smaller chromosome called the Y chromosome (inherited from your father). So, the two chromosomes which are found in human males (but not human females) are the sex chromosomes, X and Y. See: http://Biology.about.com/library/weekly/aa091103a.htm
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How many chromosomes does a body cell have?
The number of chromosomes in a body cell is typically 46 in humans. This consists of 22 pairs of autosomes and one pair of sex chromosomes (XX for females, XY for males).
How many chromosomes are in human kidney cells?
Human kidney cells are body cells, so they would have 46 chromosomes.
How many pairs of homologous chromosomes are found in human body cells?
Human cells have 23 homologous pairs. They also must go through meiosis before that. Females have 2 X chromosomes, while Males have an X and a Y chromosome. That's why the males cells decide the gender of the child.
How many chromosomes exist in your body?
A normal human cell contains 23 pairs of chromosomes, for a total of 46. If you had an average of 40 trillion cells in your body that had 412 chromosomes you would have 4456 trillion chromosomes in your body. Note that some mature cells in your body do not have any chromosomes, some have 26 chromosomes and some cells have 99 chromosomes.
How are chromosomes and genes are related?
they have cells and the cells can be in a animal body or it can be in a human body.
What is the characteristic number of chromosomes in human somatic cells?
The characteristic number of chromosomes in human somatic cells is 46, which is comprised of 23 pairs of chromosomes. These pairs include one chromosome from each parent, with 22 pairs of autosomes and one pair of sex chromosomes (XX for females and XY for males).
How many single chromosomes do humans have in their body cells?
Human cells contain forty-six chromosomes each. An exception to this is gametes (oocytes and sperm), which contain twenty-three chromosomes each.
Number of chromosomes in human body cells?
46 chromosomes 23 pairs
What is the number of chromosomes found in cells?
There are 46 chromosomes in a human body cell.
Why is it important to have half as many chromosomes as normal body cells?
The gametes must have half as many chromosomes as normal body cells because they unite to form a zygote, which is the first body cell of the new organism. For example, human body cells have 46 chromosomes and human gametes (sperm and egg cells) have 23 chromosomes. When the sperm fertilizes the egg, the zygote will have 46 chromosomes, and is the first body cell of the new human.
How many chromosomes in normal human eggs and sperm is the same as in the body cells?
Both normal human eggs and sperm contain 23 chromosomes, which is half of the total number of chromosomes found in other body cells. When a sperm fertilizes an egg, their combined 46 chromosomes create a new organism with a complete set of 46 chromosomes.
The number of chromosomes found in human body cells is?
46 chromosomes or 23 pairs of chromosomes.
