the J stands for Jumper as in Air Force Pararescue Jumper. The term Pararescue Jumper is a retronym of the initials 'PJ' that were used on an Air Force Form 5 (Aircrew Flight Log) to identify anyone who is onboard in order to jump from the aircraft..Source(s): http://en.wikipedia.org/wiki/United_Stat...he J stands for Jumper as in Air Force Pararescue Jumper. The term Pararescue Jumper is a retronym of the initials 'PJ' that were used on an Air Force Form 5 (Aircrew Flight Log) to identify anyone who is onboard in order to jump from the aircraft..
Virologists are microbiologists who study microorganisms that quickly duplicate, resulting in the rapid spreading of viruses. Their primary work is to figure out how diseases like AIDS, SARS and hepatitis spread, in order to prevent more rampant development and to assist in vaccine development.
Virology An RNA virus that encodes reverse transcriptase so that its RNA can be transcribed into DNA in a host cell; modified retroviruses are used as vectors to introduce genesâor portions thereofâof interest into eukaryotic cells.etrovirus. A family of RNA viruses containing a reverse transcriptase enzyme which allows the viruses' genetic information to become part of the genetic information of the host cell upon replication. Mentioned in: AIDS, AIDS Tests, Antiretroviral Drugs, Antiviral Drugs, Tropical Spastic Paraparesis.