Question is ⇒ Penicillin resistance in <i>staphylococci</i> is acquired due to, Options are ⇒ (A) conjugation, (B) mutation, (C) transformation, (D) transduction, (E) , Leave your comments or Download question paper.

Question is ⇒ Penicillin resistance in <i>staphylococci</i> is acquired due to, Options are ⇒ (A) conjugation, (B) mutation, (C) transformation, (D) transduction, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Penicillin resistance in staphylococci is acquired due to
A.	conjugation [Wrong Answer]
B.	mutation [Wrong Answer]
C.	transformation [Wrong Answer]
D.	transduction [Correct Answer]
View Answer 1 -1 Explanation:- Answer : D Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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⇒ The type of recombination that commonly occurs between a pair of homologous DNA sequences is,
mutagenic recombination
site-specific recombination
replicative recombination
general recombination

⇒ The expression of gene X (which has promoter Px) is to be monitored. A gene fusion construction for carrying this work will
have Px but not the rest of the X coding region
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

⇒ The main difference between a self-transmissible and a mobilizable plasmid is that the self-transmissible plasmid
transfers both strands of the plasmid DNA
carries genes encoding the mating apparatus
transfers antibiotic resistance genes
usually has a transposon inserted into it

⇒ 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

⇒ 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?
Lysogeny
Lysis
Transformation
Conjugation

⇒ The term used for plasmids possessing both RTF and r determinants is
non self-transmissible plasmids
non conjugative plasmids
conjugative plasmids
none of the above

⇒ Which of the following genetic elements carry the genes required for integration into host chromosomes?
Replicon
Plasmids
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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
lysogenic conversion
conjugation
transduction

⇒ Penicillin resistance in staphylococci is acquired due to
conjugation
mutation
transformation
transduction

⇒ The transposase gene encodes an enzyme that facilitate
viral replication within a genome
general recombination
site-specific integration of transposable elements
none of the above

⇒ Which of the following transport bacterial DNA to other bacteria via bacteriophages?
Conjugation
Transduction
Transformation
Translation

⇒ Recombination of virus genomes occurs
by transduction
by transription
simultaneous infection of a host cell by two viruses with homologous chromosomes
by transformation

⇒ Which of the following is used by microbial genetisists as a tool?
Bacteriophage
Plasmids
Transposable elements
All of these

⇒ A microarray differs from a gene fusion in that, it
carries DNA segments from many different genes
is not constructed by cloning
gives direct measurement of mRNA level
all of the above

⇒ Plasmid that carries genes encoding enzymes, which degrade substances such as aromatic compounds, pesticides or sugar are
F factors
metabolic plasmid
virulence plasmid
none of these

⇒ R factors involved in plant-microbe interactions are
plant proteins
bacterial proteins
essential for transfer of DNA to plant cells
also called opines

⇒ F factor plasmids play a major role in
conjugation
replication
transduction
trasnscription

⇒ What is term used for a bacterial cell that is able to take up naked DNA?
Complementary
Liable
Competent
Infected

⇒ In the extracellular medium, DNA-degrading enzymes would likely be to prevent transfer of DNA by
conjugal transfer by a self-transmissible plasmid
generalized phage transduction
natural transformation
none of the above

⇒ What information can be generated by interrupted mating experiments?
Levels of DNA homology
Bacterial genome maps
DNA nucleotide sequences
Proteomics of the bacteria

⇒ Diagnostic DNA probes have been developed for
Mycobacterium tuberculosis
Hepatitis B virus
Human immunodeficiency virus
all of the above

⇒ Which of the following is the cause for drug resistance in tuberculosis?
Mutation
Transduction
Transformation
Conjugation

⇒ The plasmid which makes the host more pathogenic is
F factors
Metabolic plasmid
Virulence plasmid
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⇒ The chromosomal genes, possessing fertility factor is known as
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F prime factor
HFr
F factor

⇒ When composite transposons are formed
a small deletion occurs in the transposase gene of an IS element
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

⇒ Who discovered transposons (jumping genes)?
Abelson
Harvey
McClintock
Griffith

⇒ Which of the following statement can describe horizontal transfer?
The synthesis of protein in RNA
The transmission of genetic information from one independent, mature organism to another
The transmission of genetic information from parent to offspring
The synthesis of RNA from a DNA template

⇒ The transducing particles carry only specific portions of the bacterial genome in which of the following transduction?
Specialized transduction
General transduction
Abortive transduction
None of these

⇒ The plasmids can be eliminated from a cell by the process known as
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breaking
fixing
expulsion

⇒ 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
Transposon
Insertion sequence
None of these