Question:
Which is a type of multigenic interaction?
Which is a type of multigenic interaction?
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Epistasis = One gene "standing upon" or masking another gene.
Updated On: May 14, 2026
- Lethal allele
- Co-dominance
- Epistasis
- ABO genotype
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The Correct Option is C
Solution and Explanation
Step 1: Concept
Multigenic (or intergenic) interactions occur when the expression of one gene is modified or influenced by one or more other genes.
Step 2: Meaning
Lethal alleles, co-dominance, and multiple alleles (like ABO) are typically interactions between alleles of a *single* gene (intragenic).
Step 3: Analysis
Epistasis describes the phenomenon where the effect of one gene locus is dependent on the presence of "background genes" at a different locus.
Step 4: Conclusion
Therefore, epistasis is the only multigenic interaction listed. Final Answer: (C)
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