Biology - Mock Test 251

Question 2501

Which of the following is the smallest known virus?

A) Hepatitis virus B) Retrovirus C) Polio virus D) Pox virus

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Question 2502

Which of the following virus has special affiliations with the tumor production?

A) Hepatitis virus B) Retrovirus C) Polio virus D) Pox virus

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Question 2503

An enzyme which can convert single stranded RNA into double stranded viral DNA is called?

A) DNAase B) RNAase C) DNA polymrase D) Reverse Transcriptase

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Question 2504

Which of the following disease results in Paralysis due to viral attack on C.N.S?

A) Measles B) Herpes simplex C) cancer D) Polio

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Question 2505

Which of the following is an RNA virus?

A) Influenza virus B) Herpes virus C) HBV D) Pox virus

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Question 2506

Tobacco mosaic virus is?

A) Spherical B) Rod Shaped C) Tadpole like D) Hexagonal

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Question 2507

Temperate phage may exist as?

A) Prophage B) Capsid C) Viron D) Retrovirus

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Question 2508

In the Lysogenic cycle the DNA of the bacteriophage?

A) Joins the bacterial chromosomes. B) Attaches to the inner surface of the host membrane C) Is immediately degraded when enters the host. D) Goes directly to host ribosomes for translation

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Question 2509

In the lytic cycle of bacteriophage the host DNA is?

A) Replicated B) Turn off by the protein coat. C) Digested into its nucleotides D) Turned on by the removal of the protein coat

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Question 2510

In lysogenic cycle the process of spearation of phage DNA from the hosts chromosome and initiation of lytic cycle is called?

A) Lysis B) Lysogeny C) Induction D) Adsorption

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