Question

1.) Which one of the following terms is used to describe the protein:DNA complex containing several transcription factors bound to a single enhancer?

A - enhanceosome

B - proteasome

C - chromosome

D - nucleosome

2.) The TATA box

A - is present in all eukaryotic genes.

B - acts to position RNA polymerase II for transcription initiation.

C - serves as a promoter sequence for genes transcribed by RNA polymerase III.

D - is located approximately 100 base pairs upstream of the start site for mRNAs.

3.) All the following elements can function as eukaryotic promoters EXCEPT:

A - an initiator element.

B - an enhancer.

C - CpG islands.

D - a TATA box.

4.) Which of the following is the correct order of binding of general transcription factors to initiate transcription at RNA polymerase II promoters?

A - TFIID, TFIIB, Pol II, TFIIH

B - TFIID, TFIIH, TFIIB, PolII

C - TFIIB, PolII, TFIIH, TFIID

D - PolII, TFIID, TFIIB, TFIIH

5.) What is the function of TFIIH in the transcription initiation complex?

A - unwinding the DNA duplex

B - catalyzing the synthesis of RNA

C - all are correct

D - binding to the TATA box

6.) Which serves as the promoter for 70% of eukaryotic genes and typically serves as a control region for genes that are transcribed at relatively low rates?

A - CpG islands

B - TATA box

C - enhancers

D - UAS (upstream activating sequences)