Study of virus and differences between DNA and RNA viruses

Abstract

Viruses are infectious biological agents that are completely dependent on the host cell in order to complete their replication process, transcription of the genome, and translation of the mRNA transcripts into proteins. Unlike most living things, the viruses do not have cells. A virus particle is made up of a core of nucleic acid, enclosed in a protein capsule. The virus genome consists of either a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). Depending on whether they have DNA or RNA genome, viruses are classified into two categories; DNA viruses and RNA viruses. The viral DNA or RNA may be linear or circular and single or double-stranded.