A true-breeding plant producing red flowers i | vedclass

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(B) The question describes a simple Mendelian monohybrid cross where red flower color is dominant over white flower color.Let $R$ be the allele for re

Vedclass · Accepted Answer

$3: 1$

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(B) The question describes a simple Mendelian monohybrid cross where red flower color is dominant over white flower color.Let $R$ be the allele for red flowers and $r$ be the allele for white flowers.The cross is $RR$ (red) $	imes$ $rr$ (white).The $F_1$ generation plants are all $Rr$ (red).Selfing the $F_1$ generation $(Rr 	imes Rr)$ results in an $F_2$ generation with the genotypic ratio $1 RR : 2 Rr : 1 rr$.The phenotypic ratio is $3$ red : $1$ white.Therefore, the proportion of plants producing red and white flowers is $3: 1$.

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