Flower color in plants is an example of quant | vedclass

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(A) Quantitative inheritance (polygenic inheritance) involving two pairs of genes follows the dihybrid ratio pattern in the $F_2$ generation.In a dihy

Vedclass · Accepted Answer

$2/16$

Vedclass · Answer

(A) Quantitative inheritance (polygenic inheritance) involving two pairs of genes follows the dihybrid ratio pattern in the $F_2$ generation.In a dihybrid cross,the total number of combinations is $4^2 = 16$.The parental phenotypes are represented by the extreme genotypes (homozygous dominant and homozygous recessive).In the $F_2$ generation of a dihybrid cross $(AaBb 	imes AaBb)$,the parental phenotypes are represented by the genotypes $AABB$ $(1)$ and $aabb$ $(1)$.Thus,the fraction of plants showing parental phenotypes is $1/16 + 1/16 = 2/16$.

Flower color in plants is an example of quantitative inheritance,and it is controlled by two pairs of genes. What fraction of plants in the $F_2$ generation will show the parental phenotype?

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