Biology NEET Full Syllabus Mock Test 180 Questions New Syllabus Mock Test - 4 PCB Single Correct MCQ
Published on: August 14, 2026

Match the column I and II:

Column-I Column-II

A. Pleiotropic gene (i) Both allele express equally

B. Co-dominance (ii) Change in nucleotide

C. Incomplete dominance (iii) One gene shows

multiple phenotypic expression

D. Mutation (iv) Snapdragon

A
A-(i), B-(ii), C-(iii), D-(iv)
B
A-(ii), B-(iii), C-(iv), D-(i)
C
A-(iii), B-(i), C-(iv), D-(ii)
D
A-(i), B-(iii), C-(iv), D-(ii)

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Text Solution

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The correct answer is:
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Pleiotropic gene influences multiple, unrelated phenotypic traits. Co-dominance is when both alleles contribute to the phenotype of the organism and express them equally. Epistasis is the non-reciprocal interaction between of non-allelic genes so that one gene masks the phenotypic expression of another non-allelic gene. Mutation is a change in nucleotide sequence due to errors of DNA replication, recombination, chemical mutagen, viruses or transposons.

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