MICROBIAL RECOMBINATION AND GENE TRANSFER QUIZ

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

conjugation

transduction

transformation

lysogenic conversion

TRUE ANSWER : ?
YOUR ANSWER : ?

F factor plasmids play a major role in

conjugation

transduction

replication

trasnscription

TRUE ANSWER : ?
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The type of recombination that commonly occurs between a pair of homologous DNA sequences is,

site-specific recombination

general recombination

replicative recombination

mutagenic recombination

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

have the promoter of lacZ or some other reporter gene

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

give the same information as from a microarray

have Px but not the rest of the X coding region

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The plasmids can be eliminated from a cell by the process known as

fixing

expulsion

breaking

curing

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A microarray differs from a gene fusion in that, it

All of these

gives direct measurement of mRNA level

carries DNA segments from many different genes

is not constructed by cloning

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Who discovered transposons (jumping genes)?

Harvey

McClintock

Abelson

Griffith

TRUE ANSWER : ?
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Penicillin resistance in staphylococci is acquired due to

transduction

conjugation

transformation

mutation

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The plasmid-mediated properties is/are

all of these

resistance to antibiotics

production of enterotoxin

fermentation of lactose

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Which of the following type of recombination does not require homologous sequences and is utilized by mobile genetic elements that move about chromosomes?

Site-specific recombination

General recombination

Mutagenic recombimation

Replicative recombination

TRUE ANSWER : ?
YOUR ANSWER : ?

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