What describes the main purpose of rna polymerase during transcription?

The enzyme, RNA polymerase, which performs the transcription process, binds to the promoter sequence and then beings to work its way down the DNA segment, constructing RNA to match the DNA nucleotides over which the enzyme passes.

RNA polymerase produces mRNA from DNA

this protocol provides a detailed procedure for co-immunoprecipitation (co-ip) to identify protein–protein interactions.

is this for the e2020 class