Quiz MSc MB Ist General virology

The viral envelope is made up of
a Proteins
b Glycoproteins
c Lipoproteins
d All of the above
A fully formed infectious viral particle is called
a Virion
b Viriod
c Capsid
d Virusoid
Which of the following statements are true about the viruses?
a Obligate parasites
b Free-living
c.Saprophytes
d Facultative parasites
Which of the following is a helical virus?
a TMV
b Polio Virus
c Bacterial Virus
d.Pox virus
Viruses largely lack metabolic machinery of their own to generate energy or to synthesize
a Proteins
b Acetic acid
c Alcohol
d All the above
Viruses require for their growth
a Animals
b Plants
c Bacteria
d Living Cells
Reverse transcriptase is a useful enzyme to have when
a An RNA virus converts its RNA to DNA
b There are no host cells present
c Nutrients are scarce
d Spikes are forming in the new virus
The stage when Viral genome inserted to the bacterial DNA is termed as
a Lysogenic Cycle
b Virulent phage
c Prophage
d Lytic cycle
The size of viruses is usually measured in
a Centimeter
b Nanometer
c Micrometer
d Milimeter
Which of the following statements is not true of viruses?
a Viruses have been successfully grown in pure cultures in test tubes
b All viruses are obligatory intracellular parasites
c All viruses have either DNA or RNA as their genetic material
d Viruses probably arose from small fragments of cellular chromosomes
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