Which of these cannot be related to biotechonlogy ?

Options

A. Integration of natural science and organisms.
B. Techniques to alter the chemistry of DNA.
C. Introduction of undesirable genes into the target organisms
D. Maintenance of sterile ambience to enable the growth of only the desired microbes.

Answer

To determine which option cannot be related to biotechnology, let's analyze each option step by step:

### Step 1: Understanding Biotechnology
Biotechnology is a field that involves using living organisms or their components to develop products and processes beneficial to humans. This often includes manipulating genetic material (DNA) to create desired traits in organisms.

### Step 2: Analyzing Each Option
1. **Integration of natural science and organisms**:
- This option refers to the combination of biological sciences with living organisms, which is a fundamental aspect of biotechnology.
- **Conclusion**: This is related to biotechnology.

2. **Techniques to alter the chemistry of DNA**:
- This option speaks to the methods used to change the genetic material of organisms, which is a core part of genetic engineering and biotechnology.
- **Conclusion**: This is related to biotechnology.

3. **Introduction of undesirable genes into the target organism**:
- This option suggests inserting genes that are not beneficial or desired into an organism. Biotechnology aims to introduce desirable traits, not undesirable ones.
- **Conclusion**: This is **not** related to biotechnology.

4. **Maintenance of sterile ambience to enable the growth of only desired microbes**:
- This option involves creating a controlled environment to promote the growth of beneficial microbes, which is essential in many biotechnological applications.
- **Conclusion**: This is related to biotechnology.

### Final Answer
The option that **cannot be related to biotechnology** is:
- **Introduction of undesirable genes into the target organism**.