HSC Science (General) 12th Board ExamMaharashtra State Board
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Solution for The Phenotypic Ratio of Incomplete Dominance is - HSC Science (General) 12th Board Exam - Biology

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Questions

(i) The phenotypic ratio of incomplete dominance is _____________.

(a) 2 : 1

(b) 1 : 2 : 1

(c) 1 : 1 : 1

(d) 1 : 1 : 2

The phenotypic ratio of incomplete dominance is ________.

(A) 1 : 1

(B) 3 : 1

(C) 1 : 2 : 1

(D) 9 : 3 : 3 : 1

Solution

1:2:1
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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APPEARS IN

 2015-2016 (March) (with solutions)
Question 1.1 | 1.00 mark
 2017-2018 (March) (with solutions)
Question 1.1 | 1.00 mark
Solution The Phenotypic Ratio of Incomplete Dominance is Concept: Deviations from Mendelism - Incomplete Dominance, Co-dominance, Multiple Alleles and Inheritance of Blood Groups, Pleiotropy.
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