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Patrick met Patti at the dance. Both of them are heterozygous for their pink body color, which is dominant over a yellow body color. Create a Punnett square to show the possibilities that would result if Patrick and Patti had children.List the possible genotypes and phenotypes for their children.What are the chances of a child with a pink body? ____ out of ____ or ___%What are the chances of a child with a yellow body? ___ out of ___ or ___%

Sagot :

If they are heterozygous and pink is dominant over yellow, this means that both Patrick and Patti have the following genotype: Pp.

Therefore, we should create a Punnet square crossing Pp x Pp, as follows:

There are one PP (homozygous dominant), two Pp (heterozygous) and one pp (homozygous recessive) in the diagram. So PP represents 1/4 (or 25%), Pp represents 2/4 (or 50%) and pp represents 1/4 (or 25%).

It is important to note that PP and Pp both will lead to a pink color, and only pp will lead to a yellow color.

Therefore:

The chances of a child with a pink body are three out of four, or 75%

The chances of a child with a yellow body are one out of four, or 25%

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