In Transduction DNA transmitted by a vector to bacteria belongs to:
**Core Concept**
Transduction is a process of DNA transfer from one bacterium to another through a bacterial virus, or bacteriophage. This phenomenon is essential in understanding bacterial genetics and the mechanisms of horizontal gene transfer.
**Why the Correct Answer is Right**
The correct answer is **C. Temperate phage**. Temperate phages can integrate their DNA into the host bacterium's genome, a process called lysogenic conversion. When a temperate phage infects a bacterium, it can either replicate and lyse the cell (lytic cycle) or integrate its DNA into the host genome (lysogenic cycle). During the lysogenic cycle, the phage DNA can be transmitted to other bacteria through a process called transduction. This is in contrast to virulent phages, which always replicate and lyse the host cell without integrating their DNA.
**Why Each Wrong Option is Incorrect**
**Option A:** **Lysogenic conversion** is the process by which a temperate phage integrates its DNA into the host genome, but it is not the vector that transmits DNA to bacteria.
**Option B:** **Virulent phage** always replicates and lyse the host cell without integrating its DNA, making it incapable of transducing DNA to bacteria.
**Option C:** **Temperate phage** is the correct answer, as explained above.
**Clinical Pearl / High-Yield Fact**
Remember that temperate phages can integrate their DNA into the host genome, leading to lysogenic conversion, which can result in the transmission of DNA to other bacteria through transduction.
**Correct Answer:** **C**. Temperate phage.