First slide

Viruses, Viroids,Prions and Lichens

Question

Identify the correct statements w.r.t to Viruses

Easy

A

They are inert outside the host body
B

They do not have host specificity
C

Viruses contain both DNA and RNA together as their genetic material
D

They are responsible for witches’ broom disease

Solution

Viruses are inert outside their specific host cell. Viruses are obligate parasites. In addition to proteins, viruses also contain genetic material, that could be either RNA or DNA. No virus contains both RNA and DNA. A virus is a nucleoprotein and the genetic material is infectious. They are host specific. Mycoplasmas are responsible for witches’ broom disease.

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