A gene that masks another gene's expression is called

Options

A. Dominant
B. Recessive
C. Epistatic
D. Assorted

Answer

To answer the question, "A gene that masks another gene's expression is called," we will analyze the options provided and determine the correct term.

### Step-by-Step Solution:

1. **Understanding the Terms**:
- We need to identify what is meant by a gene that "masks" another gene's expression. This implies that one gene's presence can prevent the expression of another gene.

2. **Evaluating the Options**:
- **Option 1: Dominant**: A dominant gene is one that can express itself in both homozygous (two identical alleles) and heterozygous (one dominant and one recessive allele) conditions. This means it can mask the expression of a recessive gene.
- **Option 2: Recessive**: A recessive gene only expresses itself when two copies are present (homozygous condition). It does not mask other genes; instead, it is masked by dominant genes.
- **Option 3: Epistatic**: This term refers to a gene that can mask the expression of another gene. In this context, the gene that is being masked is referred to as hypostatic.
- **Option 4: Assorted**: This term relates to the law of independent assortment, which refers to the separation of alleles during gamete formation. It does not pertain to masking of gene expression.

3. **Conclusion**:
- Based on the definitions and explanations of the terms, the correct answer is **Epistatic**. This is the gene that masks the expression of another gene.

### Final Answer:
A gene that masks another gene's expression is called **Epistatic**.

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