5 a What are the different forms a viral genome can take If

5.) a. What are the different forms a viral genome can take? If given a tube of purified nucleic acid, how can you tell the difference between these different forms experimentally? Provide at least one experiment to differentiate each variant property.

b. What is the difference between a segmented genome and a multipartite genome?

Solution

Answer=a) Viruses have a DNA genome or RNA genome & called DNA virus or RNA virus

Vast majority of viruses have RNA genome

Plant viruses have single stranded RNA genome

bacteriphage have double stranded DNA genome

Animal viruses are either DNA OR RNA viruses

b) Multipartite genome = is a class of virus that have segmented nucleic acid genome

ONly a few ss DNA viruses have multipartite genome

& lot of RNA viruses have multipartite genome

this genome has ability to synthesize multiple mRNA strands

Segmented genome = In viruses DNA & RNA viruses the genome is often divided into separate parts it is called as segmented

For RNA virus each segment is often codes for only one protein & they are usually found together in a single capsid