In Mendel's dihybrid cross,how many types of | vedclass

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(B) In Mendel's dihybrid cross involving seed shape (Round/Wrinkled) and seed color (Yellow/Green),the parental phenotypes are Round-Yellow $(RRYY)$ a

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(B) In Mendel's dihybrid cross involving seed shape (Round/Wrinkled) and seed color (Yellow/Green),the parental phenotypes are Round-Yellow $(RRYY)$ and Wrinkled-Green $(rryy)$.In the $F_2$ generation,the phenotypic ratio is $9:3:3:1$.The total number of phenotypes is $16$.The parental types are Round-Yellow $(9)$ and Wrinkled-Green $(1)$.The recombinant (non-parental) types are Round-Green $(3)$ and Wrinkled-Yellow $(3)$.Thus,there are $2$ types of offspring that are different from the parental types.

In Mendel's dihybrid cross,how many types of offspring were obtained in the $F_2$ generation that were different from the parental types?

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