What must first occur for transcription to begin? A.mRNA moves the code from the nucleus to the ribosome for protein production. B.A gene is expressed through protein production. C.RNA polymerase attaches to the promoter.
Answer:
Binding of RNA polymerase enzyme to promoter
Explanation:
RNA polymerase is the enzyme that makes RNA copy of DNA template strand. Promoter is the DNA sequence present close to the upstream of start site. Promoter serves as binding site for RNA polymerase to start the process of transcription. These are the consensus sequences that are recognized by RNA polymerase followed by its binding and beginning of RNA synthesis.
