## **Core Concept**
The question tests understanding of bacterial genetics, specifically mechanisms of horizontal gene transfer. Bacteriophages, or phages, are viruses that infect bacteria and can facilitate the transfer of genetic material between bacterial cells.
## **Why the Correct Answer is Right**
Transduction is the process by which genetic material is transferred from one bacterium to another through a viral vector, specifically a bacteriophage. This occurs when a phage infects a bacterium, picks up bacterial DNA, and then infects another bacterium, transferring the bacterial DNA in the process. This mechanism is a significant method of gene transfer among bacteria, contributing to genetic diversity and the spread of antibiotic resistance.
## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is blank and does not provide a viable choice for consideration.
- **Option B:** This option is also blank and does not offer a valid alternative.
- **Option C:** This option is blank as well, failing to present a recognizable term related to genetic transfer.
- **Option D:** This option is blank, similar to the other incorrect choices.
## **Clinical Pearl / High-Yield Fact**
A key point to remember is that transduction is particularly significant in the spread of antibiotic resistance genes among bacteria. For example, the transfer of the mecA gene, which confers methicillin resistance, can occur through transduction in Staphylococcus aureus.
## **Correct Answer:** C. Transduction
Free Medical MCQs Β· NEET PG Β· USMLE Β· AIIMS
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