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In the parental cross RR yy (round, green) x rr YY (wrinkled, yellow), what is the genotype of all F1 offspring?

Question
In the parental cross RR yy (round, green) x rr YY (wrinkled, yellow), what is the genotype of all F1 offspring?
RR YY
Rr Yy
rr yy
RR yy
Answer
Rr Yy
Detailed Explanation
Combining one R and one r, and one y and one Y from each parent gives F1 offspring the genotype Rr Yy.
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