Question

Please i need help answering the following question. Thanks!

1. Identify other types of viruses besides DNA and outline how they differ from one and other.

Answer 1

The single strand RNA +ve strand virus - Picorno virus Eg., Enterovirus, Polio, Hepatitis A virus.

Calicivirus - Hepatitis E virus. This both are non enveloped virus.

Togavirus - Dengu, Encephalitis virus etc

Retrovirus.

Single strand RNA -ve virus - Rhabdovirus - Mumps, Measles

Delta virus - Hepatitis virus D

Double strand RNA virus - Reovirus

All are differ from membrane coat or enveloped or non enveloped. And mainly by its life cycle.

single strand RNA +ve strand virus has a + strand able to synthesis protein directly from the +ve strand. Also form +ve strand the -ve stand is synthesis. From -ve strand lot od +ve strand are produce for package into new virus particle.

Single strand RNA -ve strand virus has a -ve strand transcribe into +ve strand before they synthesize a protein. From +ve strand it produces a necessary protein for the new virus particle and also produce lot of -ve strand to package into new virus particle.

Retro virus has special enzyme Reverse transcriptase it will from cDNA from RNA in the host. From DNA it produce lot of RNA virus particle for their package into new viral particles