MICROBIAL RECOMBINATION AND GENE TRANSFER QUIZ

The transposase gene encodes an enzyme that facilitate

site-specific integration of transposable elements

viral replication within a genome

None of these

general recombination

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Penicillin resistance in staphylococci is acquired due to

transformation

mutation

conjugation

transduction

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The term used for acquisition of naked DNA from its environment and its incorporation in their genome by a bacterium is

transduction

transformation

conjugation

lysogenic conversion

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In lysogeny,

bacteria take up double stranded DNA from the environment

a bacteriophage transfers bacterial DNA

a bacteriophage genome is integrated into the bacterial genome

DNA-degrading enzymes in the extracellular medium would stop the process

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What information can be generated by interrupted mating experiments?

Proteomics of the bacteria

Bacterial genome maps

DNA nucleotide sequences

Levels of DNA homology

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Which type of plasmid can exist with or without being integrated into the host's chromosome?

Medisome

Lysogen

Lisosome

Episome

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When composite transposons are formed

an IS element integrates with another IS element with the help of a plasmid

two IS elements integrate into a chromosome with only a small distance separating them

a small deletion occurs in the transposase gene of an IS element and plasmid is integrated

a small deletion occurs in the transposase gene of an IS element

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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?

Conjugation

Lysogeny

Lysis

Transformation

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What is term used for a bacterial cell that is able to take up naked DNA?

Complementary

Competent

Liable

Infected

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The chromosomal genes, possessing fertility factor is known as

HFr

F factor

F prime factor

R factor

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