Which of the following is not related to biotechnology

Options

A. Integaraiton of natural science & organisms (Microbes to plants & animals)
B. Techniques to change the chemistry of DNA
C. Maintenance of sterile ambience to maximum growth of the desired DNA
D. Introducing undersirable genes into the target organism for multiplication

Answer

### Step-by-Step Solution:

1. **Understanding Biotechnology**:
- Biotechnology involves techniques that utilize living organisms or their components (like enzymes) to develop products or processes beneficial to humans.

2. **Analyzing the Options**:
- The question presents several processes or concepts, and we need to identify which one is not related to biotechnology.

3. **Option 1: Integration of Natural Science and Organisms**:
- This refers to the use of natural sciences (like biology) in conjunction with organisms (like microbes and plants) to create recombinant DNA. This is a fundamental aspect of biotechnology.

4. **Option 2: Techniques to Change the Chemistry of DNA**:
- This involves altering the DNA sequence, which is a key technique in biotechnology, especially in genetic engineering.

5. **Option 3: Maintenance of Sterile Ambience for Growth**:
- Maintaining a sterile environment is crucial for maximizing the growth of desired organisms or DNA, making this process related to biotechnology.

6. **Option 4: Introducing Undesirable Gene into Target Genome**:
- This option suggests introducing a gene that is not wanted into the target organism. This is counterproductive and not a practice in biotechnology, as biotechnology aims to create beneficial modifications, not undesirable ones.

7. **Conclusion**:
- The process that is not related to biotechnology is the introduction of an undesirable gene into a target genome for multiplication.

### Final Answer:
The process that is not related to biotechnology is **introducing undesirable gene into the target genome for multiplication**.

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