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6th Grade Genetics

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I am a 6th grade science teacher that has to give this question to my kids. I dont even know how to answer this question so I dont know how to teach it. Anybody with any genetics background that can help would be greatly appreciated. I am intentionally not giving the answer to see how some of you would answer it. Thanks.

15)A green bean plant has a genotype of Ttyy, what are the possible

genetic combinations that could be present in a bean from this plant?

A) Ty, ty

B) TT, Tt, tt, yy

C) Tt, yy

D) Tt, yy, Ty, ty

Look over my answer to your post before you get desperate. Try to look up dihybrid cross animations.

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