Insertion of prokaryotic DNA into a eukaryotic cell without human intervenation is :

Options

A. impossible
B. seen in bacteriophages
C. naturally observed in nature
D. leads to production of double stranded RNA making translation impossible

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the insertion of prokaryotic DNA into a eukaryotic cell without human intervention. This means we need to identify a natural process or mechanism that allows this transfer to occur without any human manipulation.

2. **Identifying the Mechanism**: In nature, certain viruses are known to facilitate the transfer of genetic material from prokaryotes (like bacteria) to eukaryotes (like plant or animal cells). One of the most notable examples of such a virus is the bacteriophage.

3. **Role of Bacteriophages**: Bacteriophages are viruses that specifically infect bacteria. They have a unique structure, typically characterized by a hexagonal head and tail fibers. When a bacteriophage attaches to a bacterial cell, it injects its genetic material (which can be prokaryotic DNA) into the bacterial cell.

4. **Process of DNA Insertion**: The bacteriophage attaches to the surface of the bacterial cell, and through a process known as transduction, it can transfer its DNA into the bacterial cell. This process occurs naturally and does not require any human intervention.

5. **Conclusion**: Based on the understanding of how bacteriophages operate, the correct answer to the question is that the insertion of prokaryotic DNA into a eukaryotic cell without human intervention is seen in bacteriophages.

**Final Answer**: Bacteriophages.

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