Recombinant DNA technology is associated with

Options

A. Christian Gram
B. C. Darwin
C. Robert Koch
D. Herbert Boyer

Explanation

**Step-by-Step Solution:**

1. **Understanding Recombinant DNA Technology**: Recombinant DNA technology involves combining DNA from different sources to create new genetic combinations. This technology is crucial in genetic engineering, allowing for the production of proteins, including hormones like insulin.

2. **Identifying Key Scientists**: The question asks about the scientists associated with recombinant DNA technology. The options provided are Christian Graham, C. Darwin, Robert Koch, and Herbert Boyle.

3. **Evaluating Each Scientist**:
- **Christian Graham**: Known for Gram staining, which is a method for staining bacteria. Not related to recombinant DNA technology.
- **C. Darwin**: Famous for his theory of evolution and natural selection. Not related to recombinant DNA technology.
- **Robert Koch**: A pioneer in microbiology known for identifying pathogens. His work does not directly relate to recombinant DNA technology.
- **Herbert Boyle**: Along with Stanley Cohen, he is credited with significant contributions to recombinant DNA technology, particularly in the discovery and use of restriction enzymes.

4. **Conclusion**: The correct answer is Herbert Boyle, as he is directly associated with the development of recombinant DNA technology alongside Stanley Cohen.

5. **Final Answer**: Herbert Boyle is the scientist associated with recombinant DNA technology.

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