Symptoms of Down syndrome
Credit from the site below: http://www.webmd.com/children/tc/down-syndrome-symptoms Body Shape and Size:
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The type of inheritance Down syndrome is associated withDown syndrome is associated with mistakes in meiosis . This may be because in meiosis the parts of chromosomes are supposed to spilt up and move around in the dividing cell (disjunction). But, occasionally when one pair doesn't divide , one whole pair of chromosomes stay together and move together in the same spot of the cell (nondisjunction). So one cell has two 21st chromosome instead of one , so the resulting fertilized egg has three 21st chromosomes.
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