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Gene transcriptions/Boxes/Quiz

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This is a photomicrograph of Ostreococcus. Credit: Wenche Eikrem and Jahn Throndsen, University of Oslo.

Boxes is a lecture as part of the gene transcription series.

You are free to take this quiz based on the boxes 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 %.

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Quiz

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1 Yes or No, The human α-satellite consensus sequence contains only three CpG sequences within its 171 base-pair sequence.

Yes
No

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

core promoter
proximal promoter
downstream promoter
distal promoter
enhancer

3 Yes or No, The C and D box elements are essential for snoRNA production transcription and for snoRNA-directed modification of rRNA nucleotides.

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 boxes are located in the distal promoter.

TRUE
FALSE

6 Which of the following is not a transcriptional characteristic of 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 Yes or No, CArG boxes are present in the promoters of smooth muscle cell genes.

Yes
No

8 Complete the text:

A

sequence of nucleotides that forms a transcription or a

signal is a

.

9 Yes or No, The ATA box is a variant of the TATA box that appears in the globin and other genes.

Yes
No

10 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

.

11 Yes or No, The AGC box, GCC element, or AGCCGCC sequence, is an ethylene-responsive element found in the promoters of a large number of pathogenesis related (PR) genes.

Yes
No

12 Which of the following are phenomena associated with boxes?

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

13 True or False, 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 a box.

See also

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[edit | edit source]

{{Anthropology resources}}

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

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