RNA polymerase is an enzyme that is responsible for copying a DNA sequence into an RNA sequence, duyring the process of transcription.NA polymerases have been found in all species, but the number and composition of these proteins vary across taxa. For instance, bacteria contain a single type of RNA polymerase, while eukaryotes (multicellular organisms and yeasts) contain three distinct types.
1 A Federal Employees' Retirement System (FERS) employee (generally if you were hired on or after January 1, 1984), or.  A Civil Service Retirement System (CSRS) employee (generally if you were hired before January 1, 1984 and did not convert to FERS), or.
How to Apply. Federal Employees Retirement System (FERS) All federal employees are automatically enrolled in one of the best retirement systems in the world. If you were first hired after December 31, 1983, on an appointment with retirement coverage, you are covered by FERS. You are also covered if you transferred to FERS during a FERS open season.