Gene with multiple effects is

Options

A. Codominant
B. Pleiotropic
C. Epistatic
D. Supplementary

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term that describes a gene with multiple effects. This means we are looking for a specific genetic term that indicates a single gene can influence multiple traits or phenotypes.

2. **Analyzing the Options**:
- **Option 1: Co-dominant**: This term refers to a situation where both alleles in a heterozygote are fully expressed. This does not relate to a gene having multiple effects, so this option is incorrect.

- **Option 2: Paleotropic**: This term refers to a gene that has multiple phenotypic effects. It is the correct term for a gene that influences more than one trait, making this the right choice.

- **Option 3: Epistatic**: This term describes a situation where one gene masks or suppresses the effect of another gene. This does not relate to a single gene having multiple effects, so this option is incorrect.

- **Option 4: Supplementary**: This term refers to genes that work together to produce a certain phenotype, but it does not indicate that a single gene has multiple effects. Thus, this option is also incorrect.

3. **Conclusion**: After analyzing all the options, the correct answer to the question "Gene with multiple effects is" is **Paleotropic**.

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