savannahbrookec8701 savannahbrookec8701

14-02-2020
Biology

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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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olatunbosunadeoke olatunbosunadeoke

14-02-2020

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%

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