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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.

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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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  1. A1BG may have up to four transcription start sites.

See also

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{{Anthropology resources}}

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