First slide

Inheritance of One Gene

Question

The F₂ generation offspring in a plant showing incomplete dominance, exhibit

Easy

A

variable genotypic and phenotypic ratios.
B

a genotypic ratio of 1 : 1.
C

a phenotypic ratio of 3 : 1.
D

similar phenotypic and genotypic ratios of 1 : 2 : 1.

Solution

The F₂ generation offsprings in a plant showing incomplete dominance exhibit similar phenotypic and genotypic ratios of 1 : 2 : 1 i.e., pure dominant : hybrid : pure recessive. In incomplete dominance, neither of the two alleles are completely dominant over the other and the dominant alleles do not completely express itself.

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