which step in transcription occurs first?\n○ mrna moves the code from the nucleus to the ribosome for…

which step in transcription occurs first?\n○ mrna moves the code from the nucleus to the ribosome for protein production.\n○ a gene is expressed through protein production.\n○ rna polymerase attaches to the promoter.\n○ a repressor protein must attach to the operator.

which step in transcription occurs first?\n○ mrna moves the code from the nucleus to the ribosome for protein production.\n○ a gene is expressed through protein production.\n○ rna polymerase attaches to the promoter.\n○ a repressor protein must attach to the operator.

Answer

Brief Explanations:

Transcription begins when RNA polymerase binds to the promoter region of a DNA sequence to start synthesizing mRNA. The other options are either later steps in gene - expression or related to gene regulation but not the first step of transcription.

Answer:

RNA polymerase attaches to the promoter.