Consider the following statement about therapeutic drugs:
I) Recombinant DNA technology is used for production of therapeutic drugs which are safe and effective.
II) It avoid unwanted immunological responses commonly observed with similar products isolated from non human sources.
III) About thirty recombinant therapeutics have been approved for human use in India.
Which of the following statements given above are correct?

Options

A. I and II
B. I and III
C. II and III
D. I, II and III

Answer

To determine which statements about therapeutic drugs are correct, let's analyze each statement step by step.

### Step 1: Analyze Statement I
**Statement I**: "Recombinant DNA technology is used for production of therapeutic drugs which are safe and effective."

- **Explanation**: Recombinant DNA technology involves altering genetic material to produce desired traits or products. This technology is indeed used to produce therapeutic drugs, such as human insulin, which is both safe and effective for treating diabetes. Therefore, this statement is correct.

### Step 2: Analyze Statement II
**Statement II**: "It avoids unwanted immunological responses commonly observed with similar products isolated from non-human sources."

- **Explanation**: Therapeutic drugs produced using recombinant DNA technology, such as human insulin, are less likely to provoke unwanted immune responses compared to drugs derived from non-human sources. This specificity is crucial for patient safety and efficacy. Thus, this statement is also correct.

### Step 3: Analyze Statement III
**Statement III**: "About thirty recombinant therapeutics have been approved for human use in India."

- **Explanation**: In India, approximately 30 recombinant therapeutic drugs have indeed been approved for human use by regulatory authorities. This includes various biologics used to treat different diseases. Hence, this statement is correct as well.

### Conclusion
After analyzing all three statements, we find that:

- **Statement I**: Correct
- **Statement II**: Correct
- **Statement III**: Correct

Therefore, all three statements are correct.

### Final Answer
All the statements (I, II, and III) are correct.