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Calculating phenotypic ratio in dihybrid crosses

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

F1 - YyWw [Yellow, Round]

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

Solution Summary

Calculating phenotypic ratio in dihybrid crosses is the focal topic.

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