A gene containing multiple exons and at least one intron is termed as :-

Options

A. split gene
B. operator gene
C. synthetic gene
D. epistatic gene

Answer

To solve the question "A gene containing multiple exons and at least one intron is termed as:", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Gene Structure**:
- Genes are segments of DNA that contain coding regions called exons and non-coding regions called introns. Exons are the parts of a gene that are expressed in the final RNA product, while introns are removed during RNA processing.

2. **Identifying the Key Terms**:
- The question specifically mentions "multiple exons" and "at least one intron". This indicates that we are looking for a type of gene that has a complex structure with interruptions in the coding sequence.

3. **Evaluating the Options**:
- **Split Gene**: This term refers to genes that have both exons and introns. The presence of introns means that the gene is interrupted, which aligns with the description in the question.
- **Operator Gene**: This is a regulatory sequence that controls the expression of other genes but does not fit the description of having exons and introns.
- **Synthetic Gene**: These are artificially created genes in the laboratory and do not necessarily have a natural structure of exons and introns.
- **Epistatic Gene**: This refers to a gene that can mask the expression of another gene, but it does not relate to the presence of exons and introns.

4. **Conclusion**:
- Based on the definitions and characteristics of the options provided, the correct answer is **Split Gene**. This term accurately describes a gene that contains multiple exons and at least one intron.

### Final Answer:
The gene containing multiple exons and at least one intron is termed as a **Split Gene**.