http://www.youtube.com/watch?v=ycrPCTP2mFE&feature=related
- mistake in meiosis
- chromosomes don't split when they are supposed to
- 90% of all mistakes are in egg cells
- extra chromosome
I chose this website because I am interested in how down syndrome is caused in the body. It is a very serious disease and I know someone who has it. my next door neighbor's son has this disease and I feel sorry for him. The effects on his life have been great but he is very kind. So in conclusion, I think that this is a very serious and unfortunate disease that is created by a small mistake in meiosis.
O'Keefe, Caitlin. "Down Syndrome." Serendip's Exchange. Web. 18 Apr. 2010.
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