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Can be made up of three biochemical component's:
1. Genetic Material, which can be made up of either DNA or RNA i.e. long molecules that can carry genetic information.
2. A protein coat that can protect these genes
3. In some cases an envelope of lipids which means that it'll cover the protein coat when they are outside a cell.
capsid
envelope
nucleic acid
Viruses are composed of two main parts: an outer protein covering called a capsid and an inside core of either DNA or RNA. Not both DNA and RNA. Some of these have an envelope over the capsid. The ones that do not are said to be naked. The proteins in the capsid allow the virus to attach to the "docking stations" proteins of the host cell. The naked viruses are more resistant to changes in the environment.
Some naked viruses include poliomyelitis, warts, the common cold, chickenpox, shingles, mononucleosis, herpes simplex (cold sores), influenza, herpes viruses and HIV (AIDS).
Some enveloped viruses include norovirus (stomach bug), rotavirus and human papillomavirus (HPV).
The envelope can be damaged by freezing temperatures, chlorine, and phenol. If damaged the virus cannot infect.
Viruses are composed of two main parts: an outer protein covering called a capsid and an inside core of either DNA or RNA. Not both DNA and RNA. Some of these have an envelope over the capsid. The ones that do not are said to be naked. The proteins in the capsid allow the virus to attach to the "docking stations" proteins of the host cell. The naked viruses are more resistant to changes in the environment.
There are two basic parts to a virus: DNA (or RNA) and a covering called a capsid.
The Three Main Needed To Create A Virus Are
•Nucleic acid - set of genetic instructions, either DNA or RNA, either single-stranded or double-stranded.
•Coat of protein - surrounds the DNA or RNA to protect it.
•Lipid membrane - surrounds the protein coat found only in some viruses, including influenza; these types of viruses are called enveloped viruses as opposed to naked viruses.
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