In genetics, the phenomenon where a heterozygous individual exhibits a phenotype that is intermediate between the two homozygous phenotypes is called: MCQ with Answer and Explanation

In genetics, the phenomenon where a heterozygous individual exhibits a phenotype that is intermediate between the two homozygous phenotypes is called:
A. Codominance
B. Multiple allelism
C. Epistasis
D. Incomplete dominance
Answer: Option D
Solution (By JKExamLibrary)
Incomplete dominance is a form of inheritance where the phenotype of the heterozygote is a distinct intermediate blend of the phenotypes of the two homozygotes. Neither allele is completely dominant over the other. A classic example is the flower color in snapdragons (Antirrhinum), where a cross between a homozygous red (RR) and a homozygous white (rr) plant produces heterozygous pink (Rr) offspring. Codominance, in contrast, involves the full expression of both alleles simultaneously (e.g., AB blood type).

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Correct Answer: Option B


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