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31 January, 00:11

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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  1. 31 January, 01:02
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    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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