Round seeds (R) are dominant to wrinkled seeds (r), and yellow seeds (Y) are dominant to green seeds (y). A true-breeding plant with round and yellow seeds is crossed to a true-breeding plant with wrinkled and green seeds. What is the genotype of the F1 progeny?

Question

Biology

Kamryn Bridges

3 June, 05:01

Round seeds (R) are dominant to wrinkled seeds (r), and yellow seeds (Y) are dominant to green seeds (y). A true-breeding plant with round and yellow seeds is crossed to a true-breeding plant with wrinkled and green seeds. What is the genotype of the F1 progeny?

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Answers (1)

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Maurice Coleman · Answer 1

RrYy (all yellow seeds).

Explanation:

Mendel is known as the father of genetics. He explained the concept of dominance, law of segregation and law of independent assortment by crossing the pea plants.

A true breeding plants has been crossed with (RRYY) round and yellow seeds with rryy (wrinkled and green seeds). Their cross can be shown as below.

Parents RRYY * rryy

Gametes RY ry

F1 progeny RrYy (All round and yellow seeds)

Thus, the genotype of the progeny is RrYy.