MICROBIAL RECOMBINATION AND GENE TRANSFER QUIZ

What information can be generated by interrupted mating experiments?

Levels of DNA homology

DNA nucleotide sequences

Bacterial genome maps

Proteomics of the bacteria

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The type of recombination that commonly occurs between a pair of homologous DNA sequences is,

mutagenic recombination

replicative recombination

general recombination

site-specific recombination

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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

transformation

transduction

conjugation

lysogenic conversion

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

Transformation

Translation

Transduction

Conjugation

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

Transposable elements

All of these

Bacteriophage

Plasmids

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

Liable

Infected

Complementary

Competent

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What is the term used for a segment of DNA with one or more genes in the centre and the two ends carrying inverted repeat sequences of nucleotides?

None of these

Insertion sequence

Plasmid

Transposon

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The chromosomal genes, possessing fertility factor is known as

HFr

R factor

F prime factor

F factor

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When composite transposons are formed

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

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

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Diagnostic DNA probes have been developed for

All of these

Hepatitis B virus

Mycobacterium tuberculosis

Human immunodeficiency virus

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