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Online Microbiology Test - Microbiology Test - Random

Instruction:
  • This is a FREE online test. Beware of scammers who ask for money to attend this test.
  • Total number of questions: 20.
  • Time allotted: 30 minutes.
  • Each question carries 1 mark; there are no negative marks.
  • DO NOT refresh the page.
  • All the best!

Marks : 2/20

Total number of questions
20
Number of answered questions
0
Number of unanswered questions
20
Test Review : View answers and explanation for this test.
1.
Which of the following is not true for prokaryotic organism?
Nucleus is not bounded by nuclear membrane
Chromosomes does not contain histones
80S ribosomes are distributed in cytoplasm
Cell wall contains peptidoglycan as one of the major component
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Learn more problems on : Micro Organisms
2.
Mycoplasmas, rickettsiae, and chlamydiae are
types of fungi
small bacteria
species of protozoa
forms of viruses
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Learn more problems on : Micro Organisms
3.
Which of the following is analogous to mesosomes of bacteria?
Mitochondria of eukaryotes
Golgi apparatus of eukaryotes
Lysosomes of eukaryotes
None of these
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Learn more problems on : Bacteria Morphology
4.
Hexose monophosphate pathway is also known as
phosphogluconate pathway
oxaloacetate pathway
malate pathway
fumerate pathway
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Learn more problems on : Microbial Metabolism
5.
In DNA sequencing, the primer
specifies where the sequence ends
specifies where the sequence begins
both (a) and (b)
generates variety of different sized fragments
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Learn more problems on : Nucleic Acid Structure
6.
Which of the termination codon is called amber?
UAA
UAG
UGA
AUG
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Learn more problems on : Translation and Regulation
7.
Which of the following statement describes plasmids?
Another name for a protoplast
A complex membrane structure that covers the chromosome of bacteria
Small, circular DNA molecules that can exist independently of chromosomes commonly found in bacteria
None of the above
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Learn more problems on : Microbial Recombination and Gene Transfer
8.
The correct term for the transfer of genetic material between bacteria in direct physical contact is
conjugation
transformation
replication
transduction
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Learn more problems on : Microbial Recombination and Gene Transfer
9.
Chemically an antigen may be
lipid
protein
polysaccharide
any of these
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Learn more problems on : Immune System
10.
Which of the following is the phylogenetically oldest immunoglobulin?
IgE
IgM
IgG
All are similar
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Learn more problems on : Antibody
11.
Fluorescent treponemal antibody test is an example of
indirect immunofluorescence
direct immunofluorescence
both (a) and (b)
none of these
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Learn more problems on : Antigen Antibody Reaction
12.
Ascospores located in asci are found in
conidiocarps
sorocarps
ascocarps
plasmodiocarps
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Learn more problems on : Fungi - Molds and Yeasts
13.
Which type of interferon is produced by T lymphocytes?
α
β
γ
γ and β
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Learn more problems on : Viruses From Animal and Plants
14.
Which of the following specimens contain/s hepatitis B virus in an infected person?
Blood
Semen
Saliva
All of these
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Learn more problems on : Hepatitis Viruses
15.
Which of the following is most effective for sterilizing mattresses and plastic petri plates?
Chlorine
Ethylene oxide
Glutaraldehyde
Ultraviolet radiation
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Learn more problems on : Physical and Chemical Agents
16.
Cycloserine may be isolated from the cultures of
S. orchidaceus
S. lavendulae
S. garyphalus
All of these
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Learn more problems on : Industrially Useful Microbial Processes
17.
Type III secretion systems are used to inject "effector" proteins directly into a host cell. Salmonella uses a type III secretion system to help the pathogen to
survive the acid pH of the stomach
secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine
survive within macrophages
activate T cells to proliferate and secrete cytokines
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Learn more problems on : Microorganisms and Disease
18.
Which of the following is not a penicillin?
Penicillin G
Penicillin X
Penicillin V
Penicillin Y
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Learn more problems on : Industrially Useful Microbial Processes
19.
Which of the following virus is enveloped?
Adeno
Herpes
Polio
None of these
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Learn more problems on : Viruses
20.
The envelope of an enveloped virus is derived from
the mitochondrion of the cell
the cell membrane
the endoplasmic reticulum of the cell
none of these
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Learn more problems on : Viruses
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