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(D) In a typical Mendelian monohybrid cross,the $F_2$ phenotypic ratio is $3:1$ and the genotypic ratio is $1:2:1$.However,in the case of incomplete d

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Incomplete dominance

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(D) In a typical Mendelian monohybrid cross,the $F_2$ phenotypic ratio is $3:1$ and the genotypic ratio is $1:2:1$.However,in the case of incomplete dominance (e.g.,flower color in $Antirrhinum$ $majus$ or snapdragon),the dominant allele does not completely mask the recessive allele.In the $F_2$ generation of an incomplete dominance cross,the phenotypic ratio is $1:2:1$ (Red:Pink:White) and the genotypic ratio is also $1:2:1$ $(RR:Rr:rr)$.Thus,both ratios are identical in the $F_2$ generation.

When both the genotype and phenotype ratios are the same in the $F_2$ generation,it is an example of:

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