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Question
The phenotypic ratio of incomplete dominance is ______.
Options
2 : 1
1 : 2 : 1
1 : 1 : 1
1 : 1 : 2
9 : 3 : 3 : 1
1 : 1
3 : 1
Solution
The phenotypic ratio of incomplete dominance is 1 : 2 : 1.
Explanation:
In incomplete dominance, both alleles are expressed partially and one gene does not suppress the expression of the other gene. As a result, the two heterozygotes are similar phenotypically and genotypically; hence, the genotypic and phenotypic ratio observed in the F2 generation is 1 : 2 : 1.
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