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Fill in the blank with the correct answer from the bracket.

Pinocytic life cycle occurs in virus. (Herpes, T₄, Lambda)

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Important Questions on Biological Classification

EASY

Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

The capsid of tobacco mosaic virus (TMV) has capsomere numbering ___.

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Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

A location with luxuriant growth of lichens on the trees indicates that the:

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Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

Identify the parts labelled $1, 2, 3, 4$ in the given figure

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MEDIUM

Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

Which of the following statements related to viruses are incorrect?

I. Antibiotics can kill viruses

II. Viruses are inactive outside the cell

III. Genes involved in viral metabolism are located in the viral genome

IV. Phages can multiply by two alternative mechanism, the lytic and the lysogenic cycle

The incorrect combination is:

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Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

Select the mismatch:

HARD

Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

What is the order of events that occur in a bacteriophage lytic cycle?

EASY

Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

Which of the following is correct about viroids?

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Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

Leaf extract from an infected plant was passed through a filter with a pore size of

0.05 μ m

diameter. The infectious agent was detected in the filtrate. Which ONE of the following is the likely infectious agent?

HARD

Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

Viroids differ from viruses in having:

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Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

Mycorrhizae are the example of:

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Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

Creutzfeldt Jakob Disease

(CJD)

is a transmissible disease caused by a

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Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

Select the wrong statement.

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Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

Which one of the following statements is true about viruses?

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Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

The proteinaceous infectious particle which can cause some serious animal diseases are called:

HARD

Biology>Diversity of Living Organisms>Biological Classification>Viruses, Viroids, Prions and Lichenes

Match the following lists:

	List $I$		List $II$
A)	No sex organs, dikaryotic exogenous spores	$I)$	Gonyaulax
B)	Infectious agents without nucleic acids	$II)$	Trichodesmium
C)	Differentiated cytoplasm bloom in polluted water bodies	$III)$	Slime moulds
D)	Fruiting bodies bearing spores survive many years	$IV)$	Basidiomycetes
		$V)$	Prions