Gene transcriptions/Boxes/CAATs/Quiz

From Wikiversity
Jump to navigation Jump to search
As representative of the Metazoa here is an image of a twaid shad. Credit: Hans Hillewaert.

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

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

As a "learning by doing" resource, this quiz helps you to assess your knowledge and understanding of the information, and it is a quiz you may take over and over as a learning resource to improve your knowledge, understanding, test-taking skills, and your score.

Suggestion: Have the lecture available in a separate window.

To master the information and use only your memory while taking the quiz, try rewriting the information from more familiar points of view, or be creative with association.

Enjoy learning by doing!

Quiz[edit]







  

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[edit]

Main source: Hypotheses
  1. A1BG is not transcribed by any CAAT box.

See also[edit]

External links[edit]

{{Anthropology resources}}{{Gene project}}{{Medicine resources}}{{Phosphate biochemistry}}