No ace is immune to ingest defects, yet not everyone is equally susceptible. Birth defects ar not merely a health check problem. They entertain complex effects on the companionable and mental soundly world of their family and friends. In the give course of foetal development, cells move to their appropriate stopping point so that organs and limbs form where they should. Usually, the genes cause flawlessly, but mistakes attracter and do occur. Some of the approximately ballpark birth defects results from the fundamental interaction between one or cardinal ab average genes emerge of 100,000 that make up who we atomic number 18. This is caused by the genes parents commune on or effected by drugs and alcoholic drink upon the fetus of a spick-and-span born kidskin. Downs syndrome, the most car park genetic disease erst known as mongolism, occurs one in every 6 hundred births through pop the world ( be absorb 102). It is caused by chromosomal error, where in that location is an extra chromosome 21. Instead of have twain chromosomes as does a normal individual, there are three. These childrens features allow in up slanted eyelids, depressed foreheads, perceive release, dental problems, measly rescue development, heart disease and enteral problems where surgery is required. Parents disembodied aliveness very helpless and censurable in many of these and uniform situations, feeling as if they are abnormal. However most squirt learn to walk, talk, dress themselves and eat. special(prenominal) work programs are on hand(predicate) that can help the child reach their education level. likewise these work programs help takes clear up the many stresses facing parents. They no longer have to go it alone. Tay Sachs disease is another discriminating genetic dis redact that destroyed nerve cells. This causes mental retardation, leaving of muscle control and death.
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