Biology NEET Full Syllabus Mock Test 180 Questions New Syllabus Mock Test - 11 PCB Single Correct MCQ
Published on: August 13, 2026

Which of the following features is not correct about the type of inheritance shown by the human height character?

A
The trait is controlled by more than three genes and is therefore considered an example of polygenic inheritance.
B
Besides the involvement of multiple genes, polygenic inheritance also takes into account the influence of the environment.
C
Here, the trait is not distinct in its occurrence but is spread across a gradient.
D
In the heterozygous condition for all genes, the individual shows the tallest height trait.

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The correct answer is:
D

In a polygenic trait, the phenotype reflects the contribution of each allele, i.e., the effect of each allele is additive. When each gene for this character is in the heterozygous condition, the individual will show intermediate height.

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