Which is the CORRECT match ?

Options

A. CrylAb - Cotton bollworms
B. CrylAc - Cotton bollworms
C. CrylAc - Corn borer
D. CryllAb - corn borer

Answer

To solve the question "Which is the CORRECT match?" regarding the cry proteins and their corresponding target pests, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Context**: The question revolves around the bacterium Bacillus thuringiensis (Bt) and its cry proteins, which are used in genetically modified crops to provide resistance against specific insect pests.

2. **Identify the Cry Proteins and Their Targets**:
- **Cry 1st AB**: This protein is known to control the Corn Borer.
- **Cry 1st AC**: This protein is effective against Cotton Bullworms.
- **Cry 2nd AB**: This protein also targets the Corn Borer.

3. **Analyze the Given Options**:
- **Cry 1st AB - Cotton Bullworm**: This is incorrect; it controls Corn Borer.
- **Cry 1st AC - Cotton Bullworm**: This is correct; it effectively targets Cotton Bullworms.
- **Cry 1st AC - Corn Borer**: This is incorrect; it targets Cotton Bullworms.
- **Cry 2nd AB - Corn Borer**: This is incorrect; it also targets Corn Borer but is not matched correctly.

4. **Determine the Correct Match**: Based on the analysis, the correct match is:
- **Cry 1st AC - Cotton Bullworm**.

5. **Conclusion**: Therefore, the correct answer to the question is the second option, which states that Cry 1st AC corresponds to Cotton Bullworm.

### Final Answer:
The correct match is **Cry 1st AC - Cotton Bullworm**.

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