MICROBIAL RECOMBINATION AND GENE TRANSFER QUIZ

The expression of gene X (which has promoter Px) is to be monitored. A gene fusion construction for carrying this work will

allow to monitor the expression of all genes with a promoter similar in sequence to Px

have Px but not the rest of the X coding region

have the promoter of lacZ or some other reporter gene

give the same information as from a microarray

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following genetic elements carry the genes required for integration into host chromosomes?

Plasmids

Transposons

Tandons

Replicon

TRUE ANSWER : ?
YOUR ANSWER : ?

The transducing particles carry only specific portions of the bacterial genome in which of the following transduction?

Abortive transduction

Specialized transduction

None of these

General transduction

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YOUR ANSWER : ?

Which of the following transport bacterial DNA to other bacteria via bacteriophages?

Translation

Transduction

Conjugation

Transformation

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YOUR ANSWER : ?

Which of the following type of recombination does not require homologous sequences and is important for the integration of viral genomes into bacterial chromosomes?

Site-specific recombination

General recombination

Mutagenic recombimation

Replicative recombination

TRUE ANSWER : ?
YOUR ANSWER : ?

Inverted repeat sequences at each end and a gene encoding transposase is contained in which of the following transposable element?

Virus

Plasmid

Insertion element

Composite transposon

TRUE ANSWER : ?
YOUR ANSWER : ?

The correct term for the transfer of genetic material between bacteria in direct physical contact is

replication

transformation

transduction

conjugation

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is used by microbial genetisists as a tool?

Plasmids

Bacteriophage

Transposable elements

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following term describes the relationship between a virus and host where no new viral particles are produced and the viral genome is replicated along with host chromosome?

Lysogeny

Conjugation

Lysis

Transformation

TRUE ANSWER : ?
YOUR ANSWER : ?

In the extracellular medium, DNA-degrading enzymes would likely be to prevent transfer of DNA by

natural transformation

None of these

generalized phage transduction

conjugal transfer by a self-transmissible plasmid

TRUE ANSWER : ?
YOUR ANSWER : ?

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