A drug obtained through genetic engineering and useful for treating infertility is

Options

A. calcitonin
B. chorionic gonadotropin
C. interleukin
D. tissue plasminogen activator

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a drug that is obtained through genetic engineering and is useful for treating infertility.

2. **Analyzing the Options**: The options provided include:
- Calcitonin
- Chorionic gonadotropin
- Interleukins
- Tissue plasminogen activator

3. **Evaluating Each Option**:
- **Calcitonin**: This hormone is produced by the parathyroid gland and is involved in calcium metabolism. It is not related to infertility treatment.
- **Chorionic gonadotropin**: This is a hormone that plays a significant role in reproductive health and is widely used in the treatment of infertility. It is also produced through genetic engineering, making it a suitable candidate.
- **Interleukins**: These are a group of cytokines that act as local hormones in the immune system. They are not specifically related to infertility treatment.
- **Tissue plasminogen activator**: This is a recombinant protein used to dissolve blood clots and is primarily associated with treating conditions like myocardial infarction, not infertility.

4. **Identifying the Correct Answer**: Based on the evaluations, the only option that is both obtained through genetic engineering and is useful for treating infertility is **chorionic gonadotropin**.

5. **Conclusion**: The correct answer to the question is **chorionic gonadotropin**.

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