MICROBIAL RECOMBINATION AND GENE TRANSFER QUIZ

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

Conjugative plasmids

Cryptic plasmids

None of these

Non-conjugative plasmids

TRUE ANSWER : ?
YOUR ANSWER : ?

Penicillin resistance in staphylococci is acquired due to

transformation

conjugation

transduction

mutation

TRUE ANSWER : ?
YOUR ANSWER : ?

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

transduction

replication

conjugation

transformation

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

Insertion sequence

Transposon

TRUE ANSWER : ?
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?

Mutagenic recombimation

Site-specific recombination

Replicative recombination

General recombination

TRUE ANSWER : ?
YOUR ANSWER : ?

Diagnostic DNA probes have been developed for

Mycobacterium tuberculosis

Human immunodeficiency virus

Hepatitis B virus

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Medisome

Lisosome

Lysogen

Episome

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following statement can describe horizontal transfer?

The transmission of genetic information from parent to offspring

The synthesis of RNA from a DNA template

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

The synthesis of protein in RNA

TRUE ANSWER : ?
YOUR ANSWER : ?

What information can be generated by interrupted mating experiments?

DNA nucleotide sequences

Levels of DNA homology

Bacterial genome maps

Proteomics of the bacteria

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Plasmids

All of these

Bacteriophage

Transposable elements

TRUE ANSWER : ?
YOUR ANSWER : ?

↑