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Gene transcriptions/Start sites/Quiz

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Transcription start site is a lecture as part of the gene transcription series.

You are free to take this quiz based on the transcription start site 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, A nitrogenous nucleobase pair is linked by a hydrogen bond between the two antiparallel helices that compose DNA.

Yes
No

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

dispersed promoter
proximal promoter
downstream promoter
distal promoter
enhancer
focused promoter
core promoter

3 Yes or No, Nitrogenous bases are typically classified as the derivatives of two parent compounds, pyrimidine and purine.

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 transcription start sites are located in the dispersed promoter.

TRUE
FALSE

6 Which of the following is not a transcriptional characteristic of transcription start sites?

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:

The transcription start site is the

where transcription

at the

-end of a

sequence.

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 transcription start sites?

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

10 True or False, Transcription start sites 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 may have up to four transcription start sites.

See also

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[edit | edit source]

{{Anthropology resources}}

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

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