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Down's syndrome

The human body consists of millions of cells inside the nucleus of each cell's genetic information in chromosomes that determines all the hereditary characteristics of a human being. Normally, each cell contains 23 chromosomes inherited from each parent, a total of 46 chromosomes per cell. The cell divides so that all cells contain the exact same genetic information. A person with Down syndrome had an extra chromosome 21, so that this person has 3 instead of two chromosomes 21.

In addition to changes in physical features, the Down's syndrome associated with increased risk of heart disease and mental reduction.

There is no known cause of Down's syndrome, but research shows that women over 40 who give birth are at increased risk of having children with this genetic defect.

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