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Help on pedigree question.


alpha6

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Red is my answer.

This is the answer I got for the chart. In this chart I created the trait (black) as recessive. Can anyone explain to my why it does not work?

post-126487-0-47030100-1486920997_thumb.jpg

The answer is that the trait is autosomal dominant. I am not sure why that is. Also, what should the chart look like? Tnx.

post-126487-0-47030100-1486920997_thumb.jpg

Edited by alpha6
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