Select the incorrect statement.

Options

A. GEAC is genetic engineering approval committee.
B. PCR and ELISA are techniques that serve the purpose of easily diagnosis.
C. rDNA therapeutic induce unwanted immunological responses.
D. Transgenic mice are being used to test the safety of the polio vaccine.

Answer

To solve the question of selecting the incorrect statement, we will analyze each of the provided statements one by one.

### Step-by-Step Solution:

1. **Statement A: G E A C is the genetic engineering approval committee.**
- This statement is correct. The Genetic Engineering Approval Committee (GEAC) is indeed a regulatory body that oversees the manufacture, use, import, export, and storage of hazardous microorganisms and genetically engineered organisms. It was constituted under the Environment Protection Act in 1989.

2. **Statement B: PCR and ELISA are the techniques that serve the purpose of early diagnosis.**
- This statement is also correct. Polymerase Chain Reaction (PCR) is a technique used to amplify DNA, which can help in early diagnosis of diseases. Enzyme-Linked Immunosorbent Assay (ELISA) is used for detecting and quantifying proteins, antibodies, and hormones, making it useful for early diagnosis as well.

3. **Statement C: rDNA therapeutic induces unwanted immunological responses.**
- This statement is incorrect. Recombinant DNA (rDNA) therapeutic products are designed to be safe and effective, and they do not typically induce unwanted immunological responses. In fact, they are engineered to minimize such responses.

4. **Statement D: Transgenic mice are being used to test the safety of the polio vaccine.**
- This statement is correct. Transgenic mice are used in research to test the safety and efficacy of various vaccines, including the polio vaccine, due to their genetic similarities to humans.

### Conclusion:
After analyzing all the statements, we find that the incorrect statement is **Statement C**: "rDNA therapeutic induces unwanted immunological responses."

### Final Answer:
The incorrect statement is **C**.

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