Activities Quiz
1.

The letter A indicates _____. (Activity 19A)

question #1

supercoils
a nucleosome
a DNA double helix
histones
loops


2.

Where would RNA polymerase attach? (Activity 19A)

question #2

A
B
C
A and B
B and C


3.

The letter C indicates _____. (Activity 19A)

question #3

supercoils
a nucleosome
a DNA double helix
histones
loops


4.

What is this an image of? (Activity 19A)

question #4

supercoils
a nucleosome
a DNA double helix
histones
loops


5.

What is this an image of? (Activity 19A)

question #5

supercoils
a nucleosome
a DNA double helix
histones
loops


6.

Click on the diagram to begin the animation.
What name is given to this process? (Activity 19B)

selective gene loss
gene amplification
DNA unpacking
rearrangement
DNA packing


7.

Rearrangement of the genome plays an important role in the _____ system. (Activity 19B)

endocrine
reproductive
nervous
immune
respiratory


8.

Which of these animations illustrates selective gene loss?
You will need to click on each choice to view the animation. (Activity 19B)

none of the above


9.

The process of transcription is indicated by the letter _____. (Activity 19C)

question #9

A
B
C
D
E


10.

The letter E is indicating a process of gene expression that involves _____. (Activity 19C)

question #10

transcription
breakdown of mRNA
translation of mRNA
protein breakdown
unpacking of DNA


11.

RNA processing is indicated by the letter _____. (Activity 19C)

question #11

A
B
C
D
E


12.

Which of the following processes is NOT indicated by the label A, B, C, D, or E? (Activity 19C)

question #12

translation
RNA transcription
export of mRNA
DNA unpacking
RNA processing


13.

_____ bind(s) to DNA enhancer regions. (Activity 19D)

RNA polymerase
Promoters
Introns
Activators
Exons


14.

Click on the diagram to view the animation. What is the event that IMMEDIATELY follows the last event of this animation? (Activity 19D)

unbending of the DNA and the release of RNA polymerase from the promoter
binding of the activators to enhancers
transcription
binding of mRNA to the smaller ribosomal subunit
binding of RNA polymerase to the promoter


15.

Which of these indicates an enhancer region? (Activity 19D)

question #15

A
B
C
D
C and D


16.

Which of these directly bind(s) to the promoter? (Activity 19D)

question #16

A
B
C
D
C and D


17.

How can a single RNA transcript lead to the translation of different proteins? (Activity 19E)

The same RNA transcript may contain one of several different leaders.
The same RNA transcript may contain one of several different caps.
The same RNA transcript may be spliced in several different ways.
The same RNA transcript may contain one of several different promoters.
The same RNA transcript may contain one of several different trailers.


18.

The mRNA region to which this regulatory protein is bound is called the _____. (Activity 19E)

question #18

stop codon
trailer
leader
3' end
poly(A) tail


19.

In the cytoplasm, the mRNA degradation begins at its _____. (Activity 19E)

introns
cap
5' end
poly(A) tail
exons


20.

A poly(A) tail's resistance to degradation is affected by the characteristics of the _____. (Activity 19E)

trailer
promoter
stop codon
enhancer
leader


21.

Enzyme complexes that break down protein are called _____. (Activity 19E)

lipases
ubiquitins
amylase
proteasomes
nucleases


22.

The nuclear membrane's role in the regulation of gene expression involves _____. (Activity 19F)

protein activation
translation
protein degradation
regulating the transport of mRNA to the cytoplasm
RNA processing


23.

What is the function of a spliceosome? (Activity 19F)

protein activation
translation
protein degradation
regulating the transport of mRNA to the cytoplasm
RNA processing


24.

Protein-phosphorylating enzymes' role in the regulation of gene expression involves _____. (Activity 19F)

protein activation
translation
protein degradation
regulating the transport of mRNA to the cytoplasm
RNA processing


25.

_____ is a carcinogen that promotes colon cancer. (Activity 19G)

fat
UV light
estrogen
a virus
testosterone



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publishing as Benjamin Cummings