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Gene transcriptions/Elements/Factor II B recognitions/Quiz

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

This is an electron microscope image the archaean Halobacteria species strain NRC-1. Credit: NASA.

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Quiz

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1 Yes or No, The BRE is a cis-regulatory element that is found immediately upstream of the TATA box.

Yes
No

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

core promoter
proximal promoter
downstream promoter
distal promoter
enhancer

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

4 True or False, Some B recognition elements are located in the distal promoter.

TRUE
FALSE

5 Which of the following is not a transcriptional characteristic of b recognition elements?

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
distal promoter

6 Yes or No, The BRE consensus sequence is 5’-G/C G/C G/A C G C C-3’.

Yes
No

7 Complete the text:

The B recognition element (BRE) is a

sequence found in the gene

region of most genes in

and archaea.

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 b recognition elements?

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

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

TRUE
FALSE


Hypotheses

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Main resource: Hypotheses
  1. A1BG is not transcribed by a B recognition element.

See also

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{{Anthropology resources}}

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

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