Central to the process of transcription is the complex of proteins known as the RNA polymerases. RNA polymerases have been found in all species, but the number and composition of these proteins ...

RNA is synthesized from DNA by an enzyme known as RNA polymerase during a process called transcription. The new RNA sequences are complementary to their DNA template, rather than being identical ...

This process of protein synthesis occurs in two stages - transcription and translation. When a gene is to be expressed, the base sequence of DNA is copied or transcribed into mRNA (messenger RNA).