MICROBIAL RECOMBINATION AND GENE TRANSFER QUIZ

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

Plasmid

Virus

Insertion element

Composite transposon

TRUE ANSWER : ?
YOUR ANSWER : ?

Recombination of virus genomes occurs

simultaneous infection of a host cell by two viruses with homologous chromosomes

by transription

by transduction

by transformation

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following statement can describe horizontal transfer?

The synthesis of RNA from a DNA template

The transmission of genetic information from parent to offspring

The synthesis of protein in RNA

The transmission of genetic information from one independent, mature organism to another

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following statement(s) is/are true in regards to F+ x F- mating events?

No DNA is transferred because F+ cells are unable to perform conjugation

DNA is transferred from F+ to F- cells

DNA is transferred from F- to F+ cells

No DNA is transferred because F- cells are unable to perform conjugation

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Infected

Liable

Competent

Complementary

TRUE ANSWER : ?
YOUR ANSWER : ?

A microarray differs from a gene fusion in that, it

gives direct measurement of mRNA level

carries DNA segments from many different genes

All of these

is not constructed by cloning

TRUE ANSWER : ?
YOUR ANSWER : ?

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?

Plasmid

None of these

Transposon

Insertion sequence

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Abortive transduction

General transduction

Specialized transduction

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Diagnostic DNA probes have been developed for

Mycobacterium tuberculosis

Human immunodeficiency virus

All of these

Hepatitis B virus

TRUE ANSWER : ?
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Which of the following plamids do not possess information for self transfer to another cell?

Cryptic plasmids

None of these

Conjugative plasmids

Non-conjugative plasmids

TRUE ANSWER : ?
YOUR ANSWER : ?