Question # 1

Structural proteins of HIV are

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Encoded by virus genes

Synthesized by host ribosomes

Digested by viral enzymes

All of these

What is done to monkeys by HIV

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Multiplication and disease

Infection and multiplication

Infection and disease

None

DNA of non-virulent phage is

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Provirus

Prophage

Both

None

Joining of viral DNA with host DNA is carried out by

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Integerase

Ligase

Both

Polymerse

Which type of hepatitis is called serum hepatitis

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Hepatitis A

Hepatitis B

Hepatitis C

Hepatitis D

Chemical nature of spikes present on HIV

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Protein

Carbohydrate

Glycolipid

Glycoprotein

Pick up the false statement regarding HIV

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Lipoprotein envelope

Two RNA molecules

Two molecules of RT enzyme

Round shaped capsid

Retroviruses cause tumors in

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Rodents

Fowls

Cats

All

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

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Core

Capsid

Envelope

Genome

Which type of hepatitis leads to chronic liver disease?

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Hepatitis D

Hepatitis A

Hepatitis B

Hepatitis C

Choose the correct option about the following figure:

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A is showing Envelope

B is not showing envelope

C is showing RT

D is showing RNA

The phage is called temperate when it causes

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Virulence

Lysis

Lysogeny

Bursting of host cell

In life cycle of bacteriophage, ______ occurs followed by_______.

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Assembly. Penetration

Multiplication, landing

Tail contractio, Penetration

Penetration, Assembly

They are Tumor causing viruses and are usually host specific

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Polio viruses

Retroviruses

Oncoviruses

Both b and c

Crystallization of viruses was done by _____ for the first time

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Ivanowsky

Twort

Stanley

Robert Koch

Genome of the acellular particle mainly comprised of

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Protein

Sugars

Lipid

Nucleic acid

Which of the following is not an enzyme of HIV

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Reverse transcriptase

Integerase

Protease

Ligase

In HIV infection cycle, uncoating of virus takes place

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Outside the T-cell

Inside the cytoplasm of T-cell

Inside the nucleus of T-cell

Inside the mitochondria of T-cell

The particles which do not contain any nucleic acid are

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Viruses

Prions

Viroids

All

The best known phages are T phages that infect

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Pseudomonas

Mycoplasma

Escherichia Coli

Salmonella

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