The phenomenon of transduction was discovered by

Options

A. Zinder and Lederberg
B. Lederberg and Tatum
C. Jacob and Wollman
D. Griffith

Answer

**Step-by-Step Text Solution:**

1. **Understanding Transduction**:
- Transduction is a method of genetic recombination in bacteria where viruses, specifically bacteriophages, transfer genetic material from one bacterial cell to another.

2. **Identifying the Discoverers**:
- The question asks who discovered the phenomenon of transduction. We need to analyze the options provided:
- A) Zynder and Ladderberg
- B) Ladderberg and Tatum
- C) Jacob and Wallman
- D) Griffith

3. **Evaluating Each Option**:
- **Option A: Zynder and Ladderberg**: This option is correct as they are credited with the discovery of transduction.
- **Option B: Ladderberg and Tatum**: This pair is known for discovering conjugation, another method of genetic recombination, so this option is incorrect.
- **Option C: Jacob and Wallman**: They discovered zygotic induction, which is also a different process, making this option incorrect.
- **Option D: Griffith**: He is known for his work on transformation in bacteria, not transduction, so this option is also incorrect.

4. **Conclusion**:
- After evaluating all the options, the correct answer to the question "The phenomenon of transduction was discovered by" is **Option A: Zynder and Ladderberg**.