Question # 1

In lytic cycle, the relationship between bacterium and bacteriophages is

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Symbiotic

Master-slave

Husband wife

Host-guest

Chemical nature of spikes present on HIV

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Protein

Carbohydrate

Glycolipid

Glycoprotein

The smallest known virus is

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HIV virus

HBV virus

Influenza virus

Polio virus

The phage is called temperate when it causes

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Virulence

Lysis

Lysogeny

Bursting of host cell

Viruses containing RNA rather than DNA are called

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Riboviruses

Bacteriophages

Rotaviruses

Retroviruses

The persistent symptoms of small pox are

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Raised fluid filled vesicles

The pocks

Pustules

Vascular lesions

Head of T4 bacteriophage contain

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Single stranded DNA

Double stranded DNA

Single stranded RNA

Both RNA and DNA

An isolated virus is not considered living, since it

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Separates into two inert parts

Cannot metabolize

Rapidly loses its genome

It coated with an air tight shield

Major cells infected by HIV are

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Monocytes

B lymphocytes

T lymphocytes

RBC

If you are studying the structure of HIV , you will observe spikes associated with the

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Core

Capsid

Envelope

Genome

Isosahedral viruses usually have ___

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10 faces

20 faces

15 faces

5 faces

Mad cow infection is caused by ____

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Viroid

Virion

Prion

Bacteria

The particles which do not contain any nucleic acid are

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Viruses

Prions

Viroids

All

Which is irrelevant?

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Genome to virus structure

Capsomeres to Capsid

Tumors to retroviruses

Envelope to all viruses

Which of the following is a living character of virus

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Formation of Crystals

Production of new viral particles

Coordination

Metabolism

Herpes type-1 virus causes

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Pitted scars

Swollen neck

Rashes on genitals

Vascular lesions

Virus without envelope is

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HIV

Hepatitis B

Polio virus

Hepatatis C

Example of a virus having tadpole shape consisted of head and tail

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Bacteriophage

Polio virus

HIV

HV

Joining of viral DNA with host DNA is carried out by

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Integerase

Ligase

Both

Polymerse

Genome of the acellular particle mainly comprised of

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Protein

Sugars

Lipid

Nucleic acid

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