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.
With FERS, a postal worker who retired at age 58 after 27 years of employment with the average of her highest three years of earnings being $54,000 would receive an annual retirement payment of $14,580.ederal Employees Retirement System. The Federal Employees Retirement system was introduced in 1987 as a replacement for CSRS. All USPS employees who began work after 1984 are automatically enrolled in FERS; employees who began before 1984 have the choice to stay on CSRS or switch to FERS.