Genetic recombination through transduction was first discovered in bacterium

Options

A. Agrobacterum tumefaciens
B. Escherichia coli
C. Salmonella typhimurium
D. Diplococcus pneumoniae.

Answer

**Step-by-Step Solution:**

1. **Understanding Transduction**: Transduction is a process of genetic recombination in bacteria where DNA is transferred from one bacterium to another by a virus (bacteriophage).

2. **Identifying the Bacterium**: The question asks for the specific bacterium in which genetic recombination through transduction was first discovered.

3. **Historical Context**: The discovery of transduction was made in the context of studying bacterial genetics and the role of bacteriophages in transferring genetic material.

4. **The Specific Bacterium**: The bacterium in which transduction was first discovered is *Salmonella hypochymorium*. This bacterium is known to cause gastrointestinal infections in humans.

5. **Significance**: Understanding transduction is crucial for studying bacterial evolution, antibiotic resistance, and the development of vaccines.

**Final Answer**: Genetic recombination through transduction was first discovered in the bacterium *Salmonella hypochymorium*.

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