Gene Transfer Mechanisms in Bacteria

Play an AI-generated podcast conversation about this lesson

What is the term used to describe bacterial strains that have a higher frequency of transfer of adjacent bacterial chromosomal genes?

Low frequency recombination strains

Competent cells

Transformation strains

High frequency recombination strains (correct)

What is the term used to describe the uptake and incorporation of free or naked DNA into a bacterial cell?

Recombination

Transduction

Conjugation

Transformation (correct)

What is the purpose of making bacteria competent in the laboratory?

To introduce antibiotics to the bacterial cells

To introduce genetically manipulated plasmids into bacteria (correct)

To study the natural competence of bacteria

To study the effects of phage infection

What is the replication mechanism of a circular plasmid in a compatible recipient cell?

It replicates in the cytoplasm and is transferred to daughter cells during cell division Signup and view all the answers

What is the term used to describe the transfer of bacterial genes by a bacteriophage from one cell to another?

Transduction Signup and view all the answers

What is the component of a bacteriophage that is left outside the bacterial cell during infection?

Protein coat Signup and view all the answers

What is the function of the promoter region in the bacterial genome?

To recognize RNA polymerase for transcription initiation Signup and view all the answers

What is the primary function of plasmids in bacterial cells?

To provide antimicrobial resistance and virulence factors Signup and view all the answers

How are plasmids passed on to daughter cells?

Through self-replication and distribution during cell division Signup and view all the answers

What is the primary mechanism by which bacteria acquire antimicrobial resistance genes?

Through horizontal gene transfer via plasmid-mediated conjugation Signup and view all the answers

What is the term for the process by which bacteria take up free DNA from their environment?

Transformation Signup and view all the answers

What is the term for the exchange of genetic material between two bacterial cells?

Conjugation Signup and view all the answers

What is the term for the state where phage DNA becomes incorporated into the bacterial genome?

Lysogeny Signup and view all the answers

What is the process by which a temperate phage can be induced, and the phage DNA is excised from the bacterial genome?

Induction Signup and view all the answers

What is the term for the transfer of genetic material from a donor bacterial strain to a recipient strain?

Conjugation Signup and view all the answers

Which of the following is an example of horizontal gene transfer?

All of the above Signup and view all the answers

What is the term for the process by which a phage infects a bacterial cell and inserts its DNA into the bacterial genome?