Sexual reproduction by adopting primitive type of DNA transfer from one bacterium to another by a virus was first discovered by :

Options

A. F. Griffith
B. Lederberg and Tatum
C. Zinder and Lederberg
D. Lederverg and Hay

Answer

To solve the question regarding who first discovered sexual reproduction by adopting a primitive type of DNA transfer from one bacterium to another by a virus, we can follow these steps:

### Step 1: Understand the Process of DNA Transfer in Bacteria
- The process of DNA transfer from one bacterium to another can occur through various mechanisms, including transformation, transduction, and conjugation. In this context, we are specifically interested in transduction, which involves the transfer of genetic material via a virus (bacteriophage).

### Step 2: Identify Key Scientists Associated with Transduction
- The scientists who are primarily associated with the discovery of transduction are Joshua Lederberg and Edward Tatum. They conducted experiments that demonstrated how genetic material could be transferred between bacteria.

### Step 3: Review the Options Provided
- The options given in the question are:
1. Griffith
2. Lederberg and Tatum
3. Jindal and Lederberg
4. Lederberg and Hay

### Step 4: Analyze Each Option
- **Griffith**: Known for the transformation experiment with mice, not transduction.
- **Lederberg and Tatum**: Correctly associated with the discovery of genetic exchange in bacteria.
- **Jindal and Lederberg**: While Jindal is mentioned, it is not the primary pairing known for transduction.
- **Lederberg and Hay**: Not the correct pairing for this discovery.

### Step 5: Conclusion
- Based on the analysis, the correct answer is **Lederberg and Tatum**, who first discovered the process of transduction in bacteria.

### Final Answer
The correct answer is: **Lederberg and Tatum**.

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