Cri du chat chromosome 5 Video
USMLE-Rx Express Video of the Week: Cri du Chat Syndrome cri du chat chromosome 5One chromosome from each pair is inherited from your mother and the other is inherited from your father.
One of these chromosoje pairs is known as the sex chromosomes because this pair determines our sex. Females have two of the same kind of sex chromosome XX. Males have two different sex chromosomes XY. The Y chromosome contains the male determining genes. So, a normal female is 46, XX and a normal male is 46, XY. The other 22 pairs of chromosomes are numbered according to size with 1 being the longest pair and 22 being the shortest pair of chromosomes.
However, egg and sperm cells only have 23 chromosomes 1 chromosme from each pair. This is so that, when an egg and a sperm meet during conception, the child that is produced also has 46 chromosomes in each cell.
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New body cells are produced for growth and https://digitales.com.au/blog/wp-content/custom/the-advantages-and-disadvantages-of-technology-in/should-smoking-be-banned-in-public-places-essay.php by cells dividing, producing two 'daughter' cells. Each chromosome can duplicate an exact copy of itself so that each new cell that is formed has a full, identical set of chromosomes. Rarely, there is a problem with the child's chromosomes. Possible problems include too many chromosomes, too few chromosomes or damage to one or more chromosomes.
Understanding chromosomes and cell division
The abnormal chromosomes may mean that the baby cannot survive and so may cause a miscarriage. However, babies with some chromosome abnormalities may survive but are affected by various medical problems called a syndrome. What causes cri du chat syndrome? Cri du chat syndrome is a chromosome problem caused by a missing piece of chromosome 5.
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The missing piece of the chromosome is the short called 'p' arm of chromosome 5. Therefore cri du chat syndrome is said to be caused by deletion of chromosome 5p. Most cases are thought xhat occur as a result of damage to the chromosome during the development of the egg or sperm.]
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