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Gene transcriptions/Boxes/Quiz

< Gene transcriptions/Boxes

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

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

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

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Quiz edit

  

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 edit

Main article: Hypotheses
  1. A1BG is not transcribed by a box.

See also edit

External links edit

{{Anthropology resources}}

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

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