Genes R and Y follow independent assortment. | vedclass

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(C) According to Mendel's Law of Independent Assortment,when two pairs of contrasting traits are considered simultaneously (dihybrid cross),the inheri

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Phenotypic ratio $- 9: 3: 3: 1$

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(C) According to Mendel's Law of Independent Assortment,when two pairs of contrasting traits are considered simultaneously (dihybrid cross),the inheritance of one pair of traits is independent of the other.In this cross,the parent generation $(P)$ consists of $RRYY$ (round yellow) and $rryy$ (wrinkled green).The $F1$ generation results in $RrYy$ (round yellow) individuals.When $F1$ individuals $(RrYy)$ are self-crossed,the gametes produced are $RY, Ry, rY,$ and $ry$.Using a Punnett square to cross these gametes,the resulting $F2$ phenotypic distribution is $9$ round yellow,$3$ round green,$3$ wrinkled yellow,and $1$ wrinkled green.Therefore,the phenotypic ratio is $9: 3: 3: 1$.

Genes $R$ and $Y$ follow independent assortment. If $RRYY$ produces round yellow seeds and $rryy$ produces wrinkled green seeds,what will be the phenotypic ratio of the $F2$ generation?

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