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    Mendel's Law and Genetics

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    How do you apply Mendel's law to solve this problem?

    You have three yellow, round peas, labeled I, II, and III, and each was grown into a plant and crossed to a plant grown from a green, wrinked pea. There were 100 peas issuing from each cross were sorted into phenotypic classes as shown below:

    I. 52 yellow, round
    48 green, round

    II. 100 yellow, round

    III. 24 yellow, round
    26 yellow, wrinkled
    25 green, round
    24 green, wrinkled

    What were the genotypes of I, II, and III?

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    Solution Preview

    The cross must be

    yellow, round X green, wrinked

    result in


    The key cross here to deduce the dominance is II, which have the cross:

    yellow, round X green, wrinked

    result in

    100 all yellow, round

    So the ...

    Solution Summary

    The solution provides calculations for various genotypes by applying Mendel's Law.