Select the incorrect match

Options

A. Cry I Ab - Com borer
B. Bt toxin - Beetles
C. Cry I Ac - Cotton Bollworm
D. ctylIAc - Cotton Bollworm

Answer

To solve the question of selecting the incorrect match from the given options, we will analyze the matches one by one based on the information provided in the transcript.

### Step-by-Step Solution:

1. **Identify the Toxins and Their Targets:**
- **Cry1ab**: This toxin is known to target the corn borer.
- **Cry1ac**: This toxin is also associated with the cotton bollworm.
- **Cry2ab**: This toxin is effective against the cotton bollworm as well.
- **Bt Toxins**: These are a group of toxins produced by Bacillus thuringiensis, which can target various insects including beetles.

2. **Match the Toxins with the Insects:**
- **Cry1ab** → Corn borer (Correct match)
- **Cry1ac** → Cotton bollworm (Correct match)
- **Cry2ab** → Cotton bollworm (Correct match)
- **Bt Toxins** → Beetles (Correct match)

3. **Analyze the Given Options:**
- The question indicates that we need to find the incorrect match. The transcript suggests that Cry1ac and Cry2ac do not effectively target the cotton bollworm, which is a key point.

4. **Identify the Incorrect Match:**
- The incorrect match is **Cry1ac** and **Cry2ac** with the cotton bollworm. The transcript clarifies that Cry2ab is the toxin that acts on the cotton bollworm, not Cry2ac.

5. **Conclusion:**
- Therefore, the incorrect match is **Cry1ac and Cry2ac** with the cotton bollworm.

### Final Answer:
The incorrect match is **Cry1ac and Cry2ac**.

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