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Gene transcriptions/Boxes/CAATs/Quiz

< Gene transcriptions/Boxes | CAATs

CAAT box is a lecture as part of the gene transcription series.

As representative of the Metazoa here is an image of a twaid shad. Credit: Hans Hillewaert.

You are free to take this quiz based on the CAAT box at any time.

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Quiz

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1 Yes or No, In the direction of transcription on the template strand, the consensus sequence for a CAAT box is 3'-GGCCAATCT-5'.

Yes
No

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

core promoter
proximal promoter
downstream promoter
distal promoter
enhancer

3 Yes or No, A CCAAT box (also sometimes abbreviated a CAAT box or CAT box) is a distinct pattern of nucleotides along the template strand of DNA in eukaryotes.

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 True or False, Some CAAT boxes are located in the distal promoter.

TRUE
FALSE

6 Which of the following is not a transcriptional characteristic of CAAT boxes?

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

box when present occur upstream by

bases (nucleotides) to the

start site.

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 CAAT boxes?

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

10 True or False, CAAT boxes 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 any CAAT box.

See also

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{{Anthropology resources}}

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

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