Question:
The phenomenon of a single gene product may produce more than one effect so that a single gene may be related to more than one character.
The phenomenon of a single gene product may produce more than one effect so that a single gene may be related to more than one character.
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To identify pleiotropy, look for one gene affecting more than one trait, often across different organ systems or characteristics.
Updated On: Jun 3, 2025
- Codominance
- Incomplete dominance
- Pleiotropy
- Independent Assortment
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the definition
Pleiotropy refers to the condition where a single gene influences multiple phenotypic traits. This happens when the gene product affects more than one aspect of physiology or development. Step 2: Analyze each option
- Codominance: Both alleles express themselves equally in a heterozygote, but do not cause multiple phenotypic effects.
- Incomplete dominance: One allele does not completely dominate the other, resulting in an intermediate phenotype.
- Pleiotropy: Correct — a single gene affects multiple traits.
- Independent Assortment: Refers to the segregation of genes on different chromosomes during gamete formation. Step 3: Conclusion
The description fits pleiotropy most accurately.
Pleiotropy refers to the condition where a single gene influences multiple phenotypic traits. This happens when the gene product affects more than one aspect of physiology or development. Step 2: Analyze each option
- Codominance: Both alleles express themselves equally in a heterozygote, but do not cause multiple phenotypic effects.
- Incomplete dominance: One allele does not completely dominate the other, resulting in an intermediate phenotype.
- Pleiotropy: Correct — a single gene affects multiple traits.
- Independent Assortment: Refers to the segregation of genes on different chromosomes during gamete formation. Step 3: Conclusion
The description fits pleiotropy most accurately.
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