February 27, 2017

Homework Help: Science

Posted by Izzy on Wednesday, May 14, 2014 at 8:13pm.

Can a recessive trait be a dominant trait as well? I ask this because I have a science problem that says this:
A Bb guinea pig crosses with a Bb guinea pig, and four offspring are produced. All the offspring are black. Explain how this could happen.
I tried making a Punnett square, but it never turned out that all the offspring had the dominant trait. I thought that if a recessive trait can also be a dominant trait, that it would be the answer.
Please help. Getting really frustrated.

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