Transcription Flashcards
1
Q
What do the genes in the lac operon encode?
A
- LacZ encodes beta galactosidase
- LacY encodes lactose permease
- LacA encodes transacetylase
2
Q
What happens in transcription initiation (basal transcription factors)?
A
TFIID, TFIIA, TFIIB, RNA polymerase –> TFIIE, TFIIH (opens up DNA), TFIIF
3
Q
What is a mediator?
A
Mediator (coactivator) shares information between basal transcription factors and RNA polymerase
4
Q
What are the splicing sequences?
A
GU at 5’ end; AG at 3’
