Which step in transcription occurs first? mRNA moves the code from the nucleus to the ribosome for protein production. A gene is expressed through protein production. RNA polymerase attaches to the promoter. A repressor protein must attach to the operator.

RNA polymerase attaches to the promoter

Explanation:Took the test

(C) RNA polymerase attaches to the promoter.

Explanation:

the answer is otpion c) understanding

he wants to be heard one more time. he wants to be understood. he needs the truth one more time.

a scenario where a cell may be needed to perform a form of endocytosis is when transporting large molecules. a scenario where a cell may be needed to perform a form of exocytosis is when releasing the large molecule from the cell.