Transcription in EKs

Proofreading of a newly synthesised transcript....

• occurs during initiation

• occurs during elongation

• occurs during termination

• Does not occur during transcription

Intrinsic termination

• involves the Rho protein

• involves a Hairpin structure

• must activate a G-protein

• involves RNA polymerase Sigma factor

rho-dependent termination

• rho-protein involved

• Hairpin involved

• nusA protein involved

• G-protein involved

Number of RNA polymerases in Eukaryotes

• four

• three

• two

• five

General Transcription factor

• Involved in basal gene expression

• Involved in enhance gene expression

• involved in reduced gene expression

• Impotant for binding of DNA polymerase

Activators bind to____

• repressors

• promoters

• enhancers

• RNA polymerase

RNA Polymearse II has _____ subunits.

• 15

• 10

• 11

• 12

Introns

• Coding regions in DNA

• is also know as DNA enhancer elements

• non-coding regions in RNA

• portions of DNA that RNA polymearse binds to

TBP

• TATA-box beta protein

• TATA-box polymerase

• TATA-box bending protein

• TATA-box binding protein

"Missing" Transcription factors in the Pre-initiation complex (PIC)

• TFIID and TFIIC

• TFIIB and TFIID

• TFIIC and TFIIG

• TFIIA and TFIID