(A) Prions are infectious agents that are composed entirely of protein material. They do not contain any nucleic acids like $DNA$ or $RNA$. These prot

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(A) Prions are infectious agents that are composed entirely of protein material. They do not contain any nucleic acids like $DNA$ or $RNA$. These proteins are misfolded forms of normal cellular proteins that can induce other normal proteins to adopt the same misfolded,infectious conformation. Therefore,the correct option is $A$.

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

Easy

Prions are primarily composed of ...... .

A
Protein
B
$DNA$
C
$RNA$
D
$DNA$ and $RNA$ both

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Class 11 Questions

Class 11

Biology Questions

Chapter

Biological Classification

Subtopic

Viruses, Viroids, Prions and Lichens

$A.$ The capsid of a virus is made up of many small units called capsomeres.
$R.$ Viruses exhibit active and living behavior in a virus-free state.

Medium

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Which of the following shows a coiled $RNA$ strand and capsomeres?

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What was the contribution of the scientist $M. W. Beijerinck$ in $1898$ regarding the study of viruses?

Easy

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Assertion : $TMV$ is a virus which causes mosaic disease.
Reason : $TMV$ has $RNA$ as genetic material.

MediumAIIMS 2017

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

Medium

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Prions are primarily composed of ...... .

Similar Questions

$A.$ The capsid of a virus is made up of many small units called capsomeres.$R.$ Viruses exhibit active and living behavior in a virus-free state.

Which of the following shows a coiled $RNA$ strand and capsomeres?

What was the contribution of the scientist $M. W. Beijerinck$ in $1898$ regarding the study of viruses?

Assertion : $TMV$ is a virus which causes mosaic disease.Reason : $TMV$ has $RNA$ as genetic material.

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

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$A.$ The capsid of a virus is made up of many small units called capsomeres.
$R.$ Viruses exhibit active and living behavior in a virus-free state.

Assertion : $TMV$ is a virus which causes mosaic disease.
Reason : $TMV$ has $RNA$ as genetic material.