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.
The Federal Employees Retirement System (FERS) became effective January 1, 1987. All Federal civilian employees hired after this date are covered under FERS. FERS retirement eligibility is based on your years of service and minimum retirement age (MRA). FERS retirement plans provide benefits from a combination of the Basic Benefit Plan, Social Security and the Thrift Savings Plan (TSP).