which step in transcription occurs first?\no mrna moves the code from the nucleus to the ribosome for…

which step in transcription occurs first?\no mrna moves the code from the nucleus to the ribosome for protein production.\no a gene is expressed through protein production.\no rna polymerase attaches to the promoter.\no a repressor protein must attach to the operator.

which step in transcription occurs first?\no mrna moves the code from the nucleus to the ribosome for protein production.\no a gene is expressed through protein production.\no rna polymerase attaches to the promoter.\no a repressor protein must attach to the operator.

Answer

Brief Explanations:

Transcription initiation starts when RNA polymerase attaches to the promoter region of DNA. The other options are either steps in translation or related to gene - regulation in a different context.

Answer:

RNA polymerase attaches to the promoter.