Children with Down Syndrome have different traits, for instance some can be easy-going while other are stubborn, some may like music while others show no interest. matter what, each of these children are unique and special in their own way. .
Children with Down Syndrome have distinct physical characteristics. They are short in stature and have a small, round face with a high flattened forehead and fissured, dry lips and tongue. Another typical feature is a fold of skin, on either side of the bridge of the nose, between the corner of the eyes. The hands are often broad and the fingers short. The feet are compact with a gap between the first and second toe, and their hair is soft and sleek. Such persons are also subject to congenital heart defects, many of which can be corrected surgically. They are also more likely to develop leukemia than other members of the general population. .
There are three common types of Down Syndrome, the most common one being trisomy 21, which is found in about 95% of people with Down Syndrome. During pregnancy the formation of the egg or sperm, from a woman's or a man's pair of .
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chromosomes normally split, so that only one chromosome is in each egg or sperm. In trisomy 21, the 21st chromosome pair does not split and a double-dose goes to the egg or sperm. The second type is known as translocation, found in about 3% to 4% of people with Down Syndrome. With this type an extra part of the 21st chromosome gets "stuck" onto another chromosome. The third type, mosaicism, is found in about 1% to 2% of people with Down Syndrome. With this type an extra 21st chromosome is found in only some of the cells. There are two tests that can be done to detect if the child you are carrying has any type of Down Syndrome, they are diagnostic and screening tests. A diagnostic test samples fetal cells and gives a definitive diagnosis. This test is usually done between 14 and 18 weeks of pregnancy.