Gene transcriptions/Elements/Downstream TFIIB recognitions/Quiz

From Wikiversity
Jump to navigation Jump to search
This diagram indicates the components of a nucleotide. Credit: Calibuon.

Downstream TFIIB recognition element is a lecture as part of the gene transcription series.

You are free to take this quiz based on the downstream TFIIB recognition element at any time.

To improve your score, read and study the lecture, the links contained within, listed under See also, External links, and in the {{gene project}} template. This should give you adequate background to get 100 %.

As a "learning by doing" resource, this quiz helps you to assess your knowledge and understanding of the information, and it is a quiz you may take over and over as a learning resource to improve your knowledge, understanding, test-taking skills, and your score.

Suggestion: Have the lecture available in a separate window.

To master the information and use only your memory while taking the quiz, try rewriting the information from more familiar points of view, or be creative with association.

Enjoy learning by doing!

Quiz[edit | edit source]

  

1 Yes or No, A TFIIB recognition element (BRE) functions to determine the orientation of the TFIIB-TBP-TATA complex that projects the zinc ribbon of TFIIB toward the TSS.

Yes
No

2 The portion of the promoter in which a distal promoter is likely to be found is which of the following?

dispersed promoter
proximal promoter
downstream promoter
distant promoter
enhancer
focused promoter

3 Yes or No, The TFIIB-DNA contact with the BREd takes place via the minor groove, while that with the upstream B recognition element (BREu) takes place through the major groove.

Yes
No

4 Several promoter elements have been previously identified in eukaryotes, but those cannot account for transcription from most RNA polymerase II-transcribed

5 Yes or No, Some distal promoters are located in the dispersed promoter.

Yes
No

6 Which of the following is not a transcriptional characteristic of distal promoters?

located between nucleotides -8 and +2 relative to the transcriptional start site (+1)
G/A/T-G/C+1-G-T/C-G-G-G/A-A-G/C
in eukaryotes
TATA-less genes
a consensus sequence

7 Complete the text:

A distal promoter is a

(in numbers of nucleotides) portion of the

for a particular

.

8 Complete the text:

Match up the type of promoter or promoter element with each of the possibilities below:
TATA box - A
initiator element - B
enhancers and inhibitors - C
downstream elements - D
General transcription factor II D - E
ATA box - F
downstream core promoter

.
includes the transcription start site

.
proximal promoter

.
distal promoter

.
core promoter

usually 25 nucleotides upstream

.

9 Which of the following are phenomena associated with downstream TFIIB recognition elements?

transcription of A1BG
directs activator-dependent but TFIID-independent transcription
TATA box-less promoters
initiator element
mediator dependence
proximal promoter

10 True or False, Downstream TFIIB recognition elements are found in the promoter regions of at least 1% of human genes.

TRUE
FALSE


Hypotheses[edit | edit source]

  1. A1BG is not transcribed by a downstream TFIIB recognition element.

See also[edit | edit source]

External links[edit | edit source]

{{Anthropology resources}}

{{Medicine resources}}{{Phosphate biochemistry}}