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April 19, 2014

Homework Help: Science, Biology

Posted by maggie r on Sunday, October 14, 2007 at 9:22am.

One parent is heterozygous and one is homozygous dominant for a gene that causes DIDS. These two parents have children (F1) The alleles for this gene are S (dominant) and s(recessive). To have this disease, the child has to be homozygous recessive (ss). What are the chances of a child in the F1 generation having a child (f2) that has the disease if the second parent in the F1 generation (from outside the family) is heterozygous for SIDS?

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