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Explain Down.s syndrome....

Explain Down.s syndrome.

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Down.s syndrome is an autosomal genetic disorder caused by trisomy at chromosome 23, ie., there is an extra copy of chromosme 21. This condition affects an individual both physcially and mentally. Children born with Down.s syndrome have a flat nose and small sars. They face problem in taking, understanding and reasoning throughout their lives. They have trouble hearing and seeing. They are often dwarf.
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