In a dihybrid cross experiment,what is the ph | vedclass

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(C) dihybrid cross involves two traits (e.g.,seed shape and seed color). The $F_1$ generation plants are dihybrid,meaning they are heterozygous for bo

Vedclass · Accepted Answer

$1 : 1 : 1 : 1$

Vedclass · Answer

(C) dihybrid cross involves two traits (e.g.,seed shape and seed color). The $F_1$ generation plants are dihybrid,meaning they are heterozygous for both traits (e.g.,$RrYy$).In a test cross,the $F_1$ individual is crossed with a homozygous recessive parent (e.g.,$rryy$).The gametes produced by the $F_1$ dihybrid $(RrYy)$ are $RY, Ry, rY, ry$.The gametes produced by the homozygous recessive parent $(rryy)$ are only $ry$.Crossing these results in four combinations: $RrYy, Rryy, rrYy, rryy$.Each of these four genotypes corresponds to a distinct phenotype in a $1$:$1$:$1$:$1$ ratio.

In a dihybrid cross experiment,what is the phenotypic ratio obtained from the test cross of $F_1$ generation plants?

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