(C) Viroids are infectious agents that consist only of a short strand of circular,single-stranded $RNA$ without a protein coat (capsid).In contrast,vi

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$RNA$ molecules without protein coat

(C) Viroids are infectious agents that consist only of a short strand of circular,single-stranded $RNA$ without a protein coat (capsid).In contrast,viruses consist of genetic material ($DNA$ or $RNA$) enclosed within a protein coat called a capsid.Therefore,the defining characteristic of viroids is that they are $RNA$ molecules without a protein coat.

Class 11 Biology Biological Classification Viruses, Viroids, Prions and Lichens

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Viroids differ from viruses in having

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A
$DNA$ molecules without protein coat
B
$RNA$ molecules with protein coat
C
$RNA$ molecules without protein coat
D
$DNA$ molecules with protein coat

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Biological Classification

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Viruses, Viroids, Prions and Lichens

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There exists a close association between the algae and the fungus within a lichen. The fungus

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What name did Louis Pasteur give to the causative agents of infectious diseases?

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Assertion $A$: Viroids and viruses can pass through bacteria-proof filters.
Reason $R$: Bacteria are retained by bacteria-proof filters.
Which option is correct for Assertion $A$ and Reason $R$?

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What is the part labeled '$A$' in the given cross-section of a foliose lichen?

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The structure present in nature which exhibits characteristics of both living and non-living organisms is:

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Viroids differ from viruses in having

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There exists a close association between the algae and the fungus within a lichen. The fungus

What name did Louis Pasteur give to the causative agents of infectious diseases?

Assertion $A$: Viroids and viruses can pass through bacteria-proof filters.Reason $R$: Bacteria are retained by bacteria-proof filters.Which option is correct for Assertion $A$ and Reason $R$?

What is the part labeled '$A$' in the given cross-section of a foliose lichen?

The structure present in nature which exhibits characteristics of both living and non-living organisms is:

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Assertion $A$: Viroids and viruses can pass through bacteria-proof filters.
Reason $R$: Bacteria are retained by bacteria-proof filters.
Which option is correct for Assertion $A$ and Reason $R$?