Transduction

Definition

Transduction is the process by which bacterial DNA is transferred from one bacterium to another via a bacteriophage. It plays a significant role in horizontal gene transfer and genetic diversity among prokaryotes.

5 Must Know Facts For Your Next Test

1. There are two types of transduction: generalized and specialized.
2. In generalized transduction, any bacterial gene can be transferred by the bacteriophage.
3. Specialized transduction involves the transfer of specific genes when a prophage is excised incorrectly from the host genome.
4. Transduction does not require physical contact between donor and recipient bacteria, unlike conjugation.
5. It can contribute to the spread of antibiotic resistance genes among bacterial populations.

Review Questions

• What distinguishes generalized transduction from specialized transduction?
• How does transduction contribute to bacterial genetic diversity?
• Why is transduction considered a form of horizontal gene transfer?

Related terms

Conjugation:

A process where genetic material is transferred between bacterial cells through direct contact.

Transformation:

The uptake of naked DNA from the environment by a bacterial cell.

Bacteriophage:

A virus that infects and replicates within bacteria, playing a key role in transduction.