A gene which hides the action of another gene is termed as
(a) Co-dominant gene
(b) Epistatic gene
(c) Hypostatic gene
(d) Lethal gene

Options

A. Co-dominant gene
B. Epistatic gene
C. Hypostatic gene
D. Lethal gene

Answer

To solve the question "A gene which hides the action of another gene is termed as", we will analyze the options provided and identify the correct answer step by step.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a term that describes a gene that can hide or mask the effects of another gene.

2. **Analyzing the Options**:
- **(a) Co-dominant gene**: This refers to a situation where two different alleles are expressed equally in the phenotype. This does not involve one gene hiding the effects of another.
- **(b) Epistatic gene**: This term refers to a gene that can mask or hide the effects of another gene. This is a key term in genetics that describes the interaction between non-allelic genes.
- **(c) Hypostatic gene**: This term refers to the gene whose effects are masked by another gene (the epistatic gene). Therefore, it does not fit the description given in the question.
- **(d) Lethal gene**: This refers to a gene that can cause the death of an organism, typically when present in a certain genotype. It does not relate to the masking of another gene's effects.

3. **Identifying the Correct Answer**: Based on the definitions and functions of the genes described:
- The correct answer is **(b) Epistatic gene**, as it is the gene that hides the action of another gene.

### Final Answer:
The gene which hides the action of another gene is termed as **(b) Epistatic gene**.

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