What is the phenotypic and genotypic ratio of | vedclass

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(D) In incomplete dominance, the dominant allele does not completely mask the recessive allele. As a result, the heterozygous phenotype is an intermed

Vedclass · Accepted Answer

Phenotypic $1:2:1$, Genotypic $1:2:1$

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(D) In incomplete dominance, the dominant allele does not completely mask the recessive allele. As a result, the heterozygous phenotype is an intermediate between the two homozygous phenotypes. For example, in $Mirabilis jalapa$ (four-o'clock plant), a cross between red $(RR)$ and white $(rr)$ flowers results in pink $(Rr)$ flowers in the $F_1$ generation. When $F_1$ hybrids $(Rr)$ are self-pollinated, the $F_2$ generation shows a phenotypic ratio of $1$ (red) : $2$ (pink) : $1$ (white). The genotypic ratio is also $1$ $(RR)$ : $2$ $(Rr)$ : $1$ $(rr)$. Therefore, both the phenotypic and genotypic ratios are $1:2:1$.

What is the phenotypic and genotypic ratio of incomplete dominance?

Similar Questions

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

In $Mirabilis \text{ } jalapa$, when homozygous red-flowered and white-flowered plants are crossed, all $F_1$ plants have pink-coloured flowers. What will be the phenotypic ratio in the $F_2$ generation produced by selfing of $F_1$ individuals?

What would be the colour of flowers in $F_1$ progeny as a result of a cross between homozygous red and homozygous white-flowered Snapdragon?

Which of the following phenomena follows the phenotypic ratio of a Mendelian monohybrid cross but deviates from the genotypic ratio?

In case of incomplete dominance,what is the observation in the $F_2$ generation?

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