What 3 things does RNA polymerase do during transcription?

Transcription is performed by enzymes called RNA polymerases, which link nucleotides to form an RNA strand (using a DNA strand as a template). Transcription has three stages: initiation, elongation, and termination.

What is the function of RNA polymerase first?

RNA polymerase I transcribes the genes that encode the structural RNAs for the subunits of the ribosome. RNA polymerase II transcribes the genes that encode proteins as well as a subset of small RNAs. RNA polymerase III transcribes the genes encoding ribosomal 5S RNA, tRNAs, and a subset of other small RNAs.

Which best describes the main purpose of RNA polymerase during transcription?

RNA polymerase reaches the end of a gene. Which describes the main purpose of RNA polymerase during transcription? RNA polymerase produces mRNA from DNA.

What is the function of RNA polymerase in lac operon?

coli lac operon by RNA polymerase (RNAP) is a classic example of how the basic functions of this enzyme, specifically the ability to recognize/bind promoters, melt the DNA and initiate RNA synthesis, is positively regulated by transcription activators, such as cyclic AMP-receptor protein, CRP, and negatively regulated …

What is the function of RNA polymerase it proceeds slowly?

What is the function of RNA polymerase? It proceeds slowly along the DNA strand, requiring about a minute to add two nucleotides to the growing mRNA molecule. It relies on other enzymes to unwind the double helix. It unwinds the double helix and adds nucleotides to a growing strand of RNA.

What is the function of RNA polymerase in eukaryotes?

As previously discussed, distinct RNA polymerases are responsible for the transcription of genes encoding ribosomal and transfer RNAs in eukaryotic cells. All three RNA polymerases, however, require additional transcription factors to associate with appropriate promoter sequences.