Protein coded by which of the following gense controls the corn borer ?

Options

A. Cry I Ac
B. Cry II Ab
C. Cry I Ab
D. Both (1) and (2)

Answer

To answer the question about which protein coded by a gene controls the corn borer, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Corn Borer**:
- The corn borer is a type of moth that damages corn plants by boring into their stalks. This pest can significantly affect corn yield.

2. **Identifying the Relevant Gene**:
- The control of the corn borer is achieved through the use of a specific protein that is toxic to this pest. This protein is derived from a bacterium known as *Bacillus thuringiensis* (Bt).

3. **Isolation of the Protein**:
- The specific protein that targets the corn borer is coded by a gene known as CRY. The CRY gene has various types, each targeting different pests.

4. **Specific CRY Gene for Corn Borer**:
- Among the different types of CRY genes, the one that is specifically effective against the corn borer is the CRY-1AB gene.

5. **Conclusion**:
- Therefore, the protein coded by the CRY-1AB gene controls the corn borer.

### Final Answer:
The protein coded by the CRY-1AB gene controls the corn borer.

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