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The parent plants for a dihybrid cross are one plant with round and yellow seeds and...

The parent plants for a dihybrid cross are one plant with round and yellow seeds and one plant with wrinkled and green seeds. The probability that a plant from the F2 generation will have both round and yellow seeds is:

A: 3/4.   

B: 9/16.

C: 3/16.

D: 1/16.

E: 1/4.

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