1.When does sigma factor normally dissociate from RNA polymerase? Select one: a.

ID: 48333 • Letter: 1

Question

1.When does sigma factor normally dissociate from RNA polymerase?

Select one:

a. After the process of initiation

b. Following the addition of nucleosomes

c. After the addition of nucleosomes

d. After transcription has terminated

e. After the binding of rho

2.Prokaryotic promoters contain the sequence TATAAT at the position ____ from the transcription start.

Select one:

a. -1

b. -25

c. -10

d. -35

e. +1

3.Which of the following statements is FALSE regarding TFIID?

Select one:

a. It binds to the core promoter.

b. It aids in initiation of transcription.

c. It contains a TATA binding protein.

d. It binds to the TATA box.

e. It is a transcriptional activator protein.

4.Which of the following is a sequence of DNA where transcription is initiated?

Select one:

a. Initiator

b. Hairpin loop

c. Sigma factor

d. Promoter

e. TBP

1. a. After the process of initiation

2. d. -35 (actaully it ranges from -10 to -35)

3. It is a transcriptional activator protein. because TFIID is a transcrition factor

4. d. Promoter

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