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July 2, 2015

Homework Help: biology

Posted by Akhil on Monday, October 17, 2011 at 10:19pm.

An individual with Down's syndrome has repeat length alleles of size 8, 13, and
14 for a microsatellite near the centromere of chromosome 23. Her mother is homozygous for the 13 repeat allele. Her father is heterozygous for 8 and 14. What can we say about the origin of Down's syndrome in this case?

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