Question

what is the first step during transcription initiation in prokaryotes? multiple choice the transcription bubble is formed rna polymerase synthesizes a short primer the dna double helix is unwound rna polymerase binds to the promoter transcription factors bind to the tata box sequence

Explanation:

In prokaryotes, the first step of transcription initiation is when RNA polymerase binds to the promoter region on DNA. This binding event is crucial as it positions the enzyme correctly to start transcribing the DNA into RNA. The formation of the transcription bubble, unwinding of DNA, and synthesis of a primer occur after binding. Prokaryotes also do not have a TATA - box like eukaryotes.

Answer:

RNA polymerase binds to the promoter