Explain the process of transcription in a prokaryote
Answers
Answer :-
MECHANISM OF TRANSCRIPTION :-
☆ The main enzyme taking part in transcription is called RNA polymerase.
☆ There is single RNA polymerase in case of prokaryotes.
☆ In prokaryotes such as bacteria there is a single DNA dependent - RNA polymerase .
☆ It catalyses the transcription of all three types of RNA, mRNA, tRNA and rRNA.
I) INITIATION
☆ On specific signal the RNA polymerase binds to promote and initiates transcription.
II) ELONGATION
☆ The RNA polymerase uses ribonucleoside triphosphate as substrates and polymerase in a template dependent manner following the rule of complementarity.
III) TERMINATION
☆ One the RNA polymerase reaches to the terminator the RNA fall off and also the enzymes. Termination factor - P factor (rho) is required for the RNA chain.