Chromosomes PowerPoint 2009-2010
Chromosomes PowerPoint 2009-2010
Chromosomes PowerPoint 2009-2010
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Down Syndrome: What’s Wrong?<br />
• Writing notation:<br />
1 t – 1 l st : total<br />
chromosome #<br />
2nd – 2 S nd : Sex<br />
chromosomes<br />
3rd – 3 : extra or<br />
rd : extra or<br />
missing<br />
• Down Syndrome:<br />
• Down Syndrome:<br />
47, XY, +21