20 Questions
Which of the following is NOT a mechanism of genetic variation in bacterial populations?
Replication
What is the term used to describe the transfer of genetic material between bacterial cells through direct cell-to-cell contact?
Conjugation
Which of the following is a type of extrachromosomal DNA molecule that can replicate autonomously in bacterial cells?
Plasmid
What is the term used to describe the transfer of genetic material between bacterial cells through the uptake of free DNA from the environment?
Transformation
Which of the following is a type of genetic transfer in bacteria that involves the transfer of DNA by a bacteriophage?
Transduction
What is the term used to describe the ability of a bacterial cell to take up and incorporate exogenous DNA?
Competence
Which of the following is a small, circular DNA molecule that can replicate independently of the bacterial chromosome?
Plasmid
What is the term used to describe the transfer of genetic material between bacterial cells through the exchange of plasmids?
Conjugation
Which of the following is a type of genetic transfer in bacteria that involves the transfer of a sex pilus?
Conjugation
What is the term used to describe the transfer of genetic material between bacterial cells through the replication of the bacterial chromosome?
Replication
What is the function of the capsule in Streptococcus pneumoniae?
To help resist phagocytosis
In genetic transfer through conjugation, the DNA moves unidirectionally from the __________ to the __________.
Donor, recipient
Which of the following is NOT a state in which genes involved in genetic transfer exist in the donor bacterium?
On a bacterial chromosome
What is the role of the pilus in bacterial conjugation?
To transfer DNA on the F factor
What is the significance of F plasmids in bacteria?
They are responsible for antibiotic resistance
What is the role of bacteriophages in transduction?
To inject DNA into bacterial cells
What is the term used to describe the transfer of genes between bacteria and archaea?
Horizontal Gene Transfer (HGT)
What is the term used to describe bacteria resistant to several antibiotics?
MDRs or multidrug-resistant bacteria
Mystery Microbe # 3 is responsible for Japanense individual ability to break down nori. What is the bacteria responsible and how did this bacterium obtain this ability?
Baceteroides plebius, transformation
The bacertia Borelia burgdorferi is responsable for tick born disease. What is not correct about this bacterium?
The bacteria is a recent finding that mutated to be infectious by conjugation from capsuled bacterium of same species.
Test your knowledge on bacterial sex and mechanisms of genetic variation in bacterial populations. Learn about horizontal and vertical gene transfer, conjugation, transformation, transduction, and more.
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