Question

Which of the following options has the events of prokaryotic transcription in order?

a. elongation, termination, promoter binding, rho binding, transcription bubble
b. promoter binding, elongation, termination, rho binding, transcription bubble
c. rho binding, promoter binding, elongation, termination, transcription bubble
d. promoter binding, transcription bubble, elongation, rho binding, termination
e. transcription bubble, promoter binding, elongation, rho binding, termination

Answer 1

The events of prokaryotic transcription occur in the following order: promoter binding, elongation, termination, rho binding, and transcription bubble.

Step-by-step explanation:

The events of prokaryotic transcription occur in the following order: promoter binding, elongation, termination, rho binding, and transcription bubble.

1. Promoter binding: The RNA polymerase binds to a specific sequence of DNA called the promoter to initiate transcription.
2. Elongation: The RNA polymerase moves along the DNA template, synthesizing mRNA in the 5' to 3' direction.
3. Termination: Once the gene is transcribed, the polymerase needs to dissociate from the DNA template and release the newly made mRNA.
4. Rho binding: Rho protein, depending on the gene being transcribed, collides with the polymerase, leading to termination.
5. Transcription bubble: This is the region where transcription occurs, where the DNA is unwound and the mRNA is synthesized.