Question

what happens in intiation of translation​

Answer 1

Initiation

• 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 single DNA dependent RNA polymerase that catalyses transcription of all three types of RNA, mRNA ,tRNA and rRNA.

• The process of transcription involves following steps;

1. On specific signal the RNA polymerase binds to promote and initiates transcription.
2. The promoter region in a cistron is recognised by sigma subunit of the RNA polymerase in prokaryotes and many transcription factors in eukaryotes.