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Microbiology
‣
Viruses in Eukaryotes
See What Others Are Saying!
Question
__________is probably the most important characteristic for classification of viruses in eukaryotes.
Options
A. Host preference
B. Morphology
C. Physical nature of virion constituents
D. Chemical nature of virion constituents
Correct Answer
Host preference
More questions
1. Which of the following catalyze liberation of orthophosphate from organic P compounds and inorganic pyrophosphate?
Options
A. Alkaline phosphates
B. Oxidoreductase
C. Protease
D. Hydrogenase
Show Answer
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Discuss
Correct Answer: Alkaline phosphates
2. Which of the following theory is supported by the genomic sequence of the obligate intracellular parasite
Rickettsia prowazekii
?
Options
A. Parasitic bacteria have very large genomes
B. Parasites have a definite genomic sequence similar to viruses
C. Mitochondria have evolved from endosymbiotic bacteria
D. All bacteria evolved from viruses
Show Answer
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Correct Answer: Mitochondria have evolved from endosymbiotic bacteria
3. Which of the antibiotic is not used as a food preservative?
Options
A. Pimaricin
B. Nisin
C. Tylosin
D. ?-lactam antibiotic
Show Answer
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Discuss
Correct Answer: ?-lactam antibiotic
4. Which of the following microorganism produces only L(+) - lactic acid without further racemization?
Options
A.
Leuconostoc mesenteroides
B.
Lactobacillus delbrueckii
C.
Rhizopus oryzae
D.
Lactobacillus bulgaricus
Show Answer
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Discuss
Correct Answer:
Rhizopus oryzae
5. Algae are classified into 6 groups, technically known as
Options
A. categories
B. divisions
C. genera
D. domains
Show Answer
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Correct Answer: divisions
6. Which of the following is a food infection?
Options
A. Salmonellois
B. Botulism
C. Staphylococcal intoxication
D. None of these
Show Answer
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Correct Answer: Salmonellois
7. The class of immunoglobulin, most abundant in body is
Options
A. IgD
B. IgE
C. IgG
D. IgM
Show Answer
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Discuss
Correct Answer: IgG
8. The medium required for glutamic acid mainly consist of
Options
A. glucose
B. molasses
C. sucrose
D. lactose
Show Answer
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Discuss
Correct Answer: glucose
9. Which of the following nucleic acid is present in hepatitis B virus?
Options
A. dsDNA
B. ssRNA
C. ssDNA
D. dsRNA
Show Answer
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Discuss
Correct Answer: dsDNA
10. Who discovered transposons (jumping genes)?
Options
A. Abelson
B. Harvey
C. McClintock
D. Griffith
Show Answer
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Discuss
Correct Answer: McClintock
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Transcription
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