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May 22, 2015

Homework Help: biology

Posted by Joey on Saturday, February 27, 2010 at 3:18pm.

In guinea pigs, the allele for a rough coat (R) is dominant over the allele for a smooth coat (r). A heterozygous guinae pig (Rr) and a homozygous recessive guinea pig (rr) have a total of nine offspring. The punnett square for this cross shows a 50 percent chance that any particular offspring will have smooth coats. Explain how all nine offspring can have smooth coats.

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