الفهرس 
Causes of Down SyndromeOnly 14 pages are availabe for public view
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Abstract
Down syadrome is a ggenctic disorder caused when abnormal ceii division result in extra genetic materrial from chromosome21.
| الفهرس | Only 14 pages are availabe for public view
| ||||||||||||||
Abstract Down syadrome is a ggenctic disorder caused when abnormal ceii division result in extra genetic materrial from chromosome21. | |||||||||||||||