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    Calculating phenotypic ratio in dihybrid crosses

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    In garden peas, yellow seed color is dominant over green, and round seed shape dominant over wrinkled. What phenotypic ratio can be expected in F2 from a cross between pure yellow and round with green and wrinkled? What would be the ratio of yellow: green and round: wrinkled? Ideas are included.

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    Solution Preview

    Parents - YYWW [Yellow, Round] X yyww [Green, Wrinkled]

    F1 - YyWw [Yellow, Round]

    F2 - 9/16 Y-W- [Yellow, ...

    Solution Summary

    The expert calculates the phenotypic ratio in dihybrid crosses is the focal topic. The ratio of yellow, green and round are given.