Which genes encode the protein to control bollworms infection in cotton plants?

Options

A. c,y IIAb
B. cry IAc
C. Both (1) & (2)
D. cry IAb

Answer

To answer the question regarding which genes encode the protein to control bollworm infection in cotton plants, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Context**: The question is about genetically modified cotton plants that are resistant to pests, specifically the bollworm. These plants are often referred to as Bt cotton.

**Hint**: Identify the significance of Bt crops in pest management.

2. **Identify the Source of the Genes**: The genes that provide resistance to bollworms in cotton are derived from a bacterium known as *Bacillus thuringiensis* (Bt). This bacterium produces proteins that are toxic to certain insects.

**Hint**: Recall the role of *Bacillus thuringiensis* in biotechnology.

3. **Recognize the Proteins Produced**: The proteins produced by *Bacillus thuringiensis* are known as cry proteins or cry toxins. These proteins are produced in the form of protoxins, which are activated in the gut of the insect when ingested.

**Hint**: Understand the mechanism of action of cry proteins in pest control.

4. **Identify Specific Genes**: The specific genes from *Bacillus thuringiensis* that are effective against the cotton bollworm include:
- **CRY1AC**: This gene encodes a protein that is effective against the cotton bollworm.
- **CRY2AB**: This gene also provides resistance to the cotton bollworm.

**Hint**: Different genes target different pests, so it's important to match the gene to the specific pest.

5. **Select the Correct Answer**: Based on the information provided, both CRY1AC and CRY2AB are effective against the cotton bollworm. Therefore, the correct answer to the question is that both these genes encode proteins to control bollworm infection in cotton plants.

**Hint**: Look for options that include both CRY1AC and CRY2AB as correct answers.

### Final Answer:
The genes that encode the proteins to control bollworm infection in cotton plants are **CRY1AC and CRY2AB**.