If two heterozygote yellow pea plants (Yy) are crossed together, what percentage of the offspring would have yellow peas (the dominant phenotype) ?

Question

Biology

Natalee Boone

10 June, 18:24

If two heterozygote yellow pea plants (Yy) are crossed together, what percentage of the offspring would have yellow peas (the dominant phenotype) ?

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Answers (1)

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Luciana Weaver · Answer 1

Answer: 75%

Explanation:

Yy seperate to yield two alleles "Y" and "y"

So, the cross of the two alleles:

"Y" X "y" by "Y" X "y"

F1 will be YY, Yy, Yy and yy

From the crossing, the dominant phenotype are YY, Yy, Yy; while yy is recessive.

Thus, the percentage of the offspring would have yellow peas are 3 out of 4 or 75%