Lecture 17 Flashcards
1
Q
where is rRNA, mRNA and tRNA transcribed?
A
RNA polymerase I, II and III
2
Q
what are the 3 transcription sets?
A
Inititation, elgongation and termination
3
Q
what direction is DNA transcribed?
A
down 5’ to 3’
4
Q
what helps RNA polymerase II form the preinitiation complex? how does it do it?
A
general transcription factors (GTFs)
- recruits and modify RNA-polymerase II
5
Q
what helps prevent mRNA from degrading?
A
3’ tail and 5’ cap
6
Q
what is the role of transcription factors? what related structure do they have to DNA?
A
can inhibit or activate particular gene transcription
have motifs
