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.
Parents - YYWW [Yellow, Round] X yyww [Green, Wrinkled]
F1 - YyWw [Yellow, Round]
F2 - 9/16 Y-W- [Yellow, ...
Calculating phenotypic ratio in dihybrid crosses is the focal topic.