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In the F2 of an RrYy x RrYy cross, what fraction is wrinkled and green?

A3/16
B9/16
C1/4
D1/16
Answer & Solution
Correct answer: D. 1/16
Wrinkled green needs rryy, which is 1/4 x 1/4 = 1/16 of the F2.
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