Question

What is the role of RNA polymerase in transcription?



It binds to the promoter region of a gene and adds new nucleotides to the growing end of nascent mRNA.



It binds to the promoter region of a gene and terminates the process of transcription.



It binds to the coding region and adds nucleotides to the growing end of the DNA.

Answer 1

A.It binds to the promoter region of a gene and adds new nucleotides to the growing end of nascent mRNA.


RNA polymerase binds to the promoter region of a gene and, after locally unwinding the DNA double helix, then uses a segment of one strand of DNA as a template for the synthesis of a complementary RNA molecule.