[Lec 8] iClicker Questions: Regulation of Eukaryotic Transcription

Question 1

The human body contains approximately 200 major cell types. They look and function differently from one another because:

A. Each has a slightly different genome
B. Each expresses a different set of genes
C. Each expresses the same set of genes, but in different orders at different times

Answer 1

b.

Question 2

Which of the following mechanisms do both prokaryotic cells and eukaryotic cells use to regulate transcription?

A) Transcription Initiation

B) Transcription Repression

C) Chromatin Remodeling

D) Both A and B

E) All of the above

Answer 2

d.

Question 3

Which of the following is a significant difference(s) between transcription regulation in eukaryotes and prokaryotes.

A) Eukaryotes have nucleosomes and prokaryotes don’t
B) Eukaryotes don’t have nucleosomes but prokaryotes do
C) Eukaryotes have a more extensive regulatory network
D) Prokaryotes have a more extensive regulatory network
E) A and C

Answer 3

e.

Question 4

Epigenetic mechanisms of gene regulation involve:

A) Changes in DNA sequences

B) The way in which DNA is packaged in chromosomes

C) The way in which chromosomes are packaged into genomes

Answer 4

b.

Question 5

Which gene do you expect the enhancer to activate?

A) Gene 1
B) Gene 2
C) Gene 3
D) All of the above
E) None of the above

Answer 5

a.

Question 6

Given the domain swapping experiment shown above, which of the following statements is true;

A) The top is gene A and the bottom is gene B and both are on

B) The top is gene A and the bottom is gene B and both are off

C) The top is gene B and the bottom is gene A and both are on

D) The top is gene B and the bottom is gene A and both are off

Answer 6

a.