Which of the following products of genetic engineering are not correctly matched with their use ?

Options

A. Tissuse Plasminogen Activator : Breaks blood clot
B. Interferons : Cancer treatment
C. Enzyme DNAse: Helps in cell division and repair of tissues
D. Humulin : To treat insulin dependent diabetes

Answer

To solve the question of which product of genetic engineering is not correctly matched with its use, we will analyze each option provided in the question step by step.

### Step-by-Step Solution:

1. **Identify the First Option: Tissue Plasminogen Activator (TPA)**
- **Use**: It is used to break down blood clots.
- **Analysis**: TPA is indeed a protein involved in the breakdown of blood clots, making this match correct.

2. **Identify the Second Option: Interferons**
- **Use**: They are involved in the immune response against pathogens.
- **Analysis**: Interferons are proteins produced by host cells in response to viral infections and help in the defense against viruses and tumors. This match is also correct.

3. **Identify the Third Option: DNA Enzyme**
- **Use**: It is stated to help in cell division and repair of tissue.
- **Analysis**: The DNA enzyme (likely referring to DNA polymerase or similar enzymes) is primarily involved in the hydrolytic cleavage of phosphodiester linkages in DNA. While it plays a role in DNA replication and repair, it does not directly assist in cell division. This match is incorrect.

4. **Identify the Fourth Option: Humulin**
- **Use**: It is used to treat insulin-dependent diabetes.
- **Analysis**: Humulin is a form of insulin used to lower blood glucose levels in diabetic patients. This match is correct.

### Conclusion:
The product of genetic engineering that is not correctly matched with its use is the **DNA enzyme** (third option), which is incorrectly stated to help in cell division and tissue repair.

### Final Answer:
The incorrect match is the **DNA enzyme**.

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