Question # 1

In life cycle of bacteriophage, ______ occurs followed by_______.

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Assembly. Penetration

Multiplication, landing

Tail contractio, Penetration

Penetration, Assembly

The smallest known virus is

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HIV virus

HBV virus

Influenza virus

Polio virus

Which type of hepatitis is called serum hepatitis

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Hepatitis A

Hepatitis B

Hepatitis C

Hepatitis D

Retroviruses cause tumors in

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Rodents

Fowls

Cats

All

HIV attaches on cell membrane of T cell at _____ receptor site

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Cd2

Cd4

Cd8

Gp120

Vaccine for___ is under trial administration

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Hep A

Polio

Measles

AIDS

Which of the following is a common feature of all viruses

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DNA replication in cytoplasm

RNA synthesis in nucleus

Protein synthesis in cytoplasm

Reverse transcription in cytoplasm

Major cells infected by HIV are

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Monocytes

B lymphocytes

T lymphocytes

RBC

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

Which is irrelevant?

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Genome to virus structure

Capsomeres to Capsid

Tumors to retroviruses

Envelope to all viruses

In lytic cycle, the relationship between bacterium and bacteriophages is

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Symbiotic

Master-slave

Husband wife

Host-guest

Viral core always contain __ among the following

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DNA

RNA

Both A and B

Any of A or B

What is done to monkeys by HIV

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Multiplication and disease

Infection and multiplication

Infection and disease

None

They are Tumor causing viruses and are usually host specific

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Polio viruses

Retroviruses

Oncoviruses

Both b and c

Which of the following acts as template strand for reverse transcription

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Viral DNA

Viral RNA

Host DNA

Host RNA

Which of the following disease is not caused by virus?

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Cholera

Hepatitis

Influenza

Polio

Newly synthesized Large proteins are digested into small viral proteins by

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Host protease

Viral protease

Viral RT

Host pepsin

Crystallization of viruses was done by _____ for the first time

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Ivanowsky

Twort

Stanley

Robert Koch

Pick up the false statement regarding HIV

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Lipoprotein envelope

Two RNA molecules

Two molecules of RT enzyme

Round shaped capsid

It is not a symptom of AIDS

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Swollen lymph nodes

Loss of immunity

Swollen neck

Pneumonia

Viruses are not resistant to

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Interferons

Penicillin

Streptomycin

Any antibiotic

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