AIDS is a disorder due to HIV (Human Immuno Deficiency Virus). HIV is enveloped within a membrane which is made up of a several GP120 and GP41 glycoprotein. Both of the proteins resemble spike dots, which gene the horse chesnut appearance to virus. The core (central part) of virus contain two ssRNA, reverse transcriptase enzyme, P−15 protein which is associated with RNA, inner covering of P−24 and outer covering fo P−28.
