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.

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

RNA polymerase is an enzyme that helps in the synthesis of mRNA ( messenger RNA) by using a template of DNA. This process is called transcription.

In this process, RNA polymerase first binds to a specific region in the gene called promoter, which marks the initiation of the transcription.

RNA polymerase by adding new nucleotide at the growing end of the nascent mRNA, synthesizes mRNA, which is complementary to the DNA template.

Thus, first option is the right answer.

one of the most common forms of pain or discomfort we feel during strenuous exercise is a burning sensation in our lungs or muscles that goes away shortly after we cease the activity. this is caused by a build-up of lactic acid.

answer; ///i believe the correct answer is (aids) acquired immune deficiency syndrome;