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Activities Quiz



This activity contains 54 questions.

Question 1
1 In the accompanying image, a nucleotide is indicated by the letter _____.

Question #6

 
End of Question 1


Question 2
2 Which of these is a difference between a DNA and an RNA molecule?
 
End of Question 2


Question 3
3 This is an image of a(n) _____.

Question #8

 
End of Question 3


Question 4
4 The letter A indicates a _____.

Question #9

 
End of Question 4


Question 5
5 A nitrogenous base is indicated by the letter _____.

Question #10

 
End of Question 5


Question 6
6 You can tell that this is an image of a DNA nucleotide and not an RNA nucleotide because you see a _____.

Question #11

 
End of Question 6


Question 7
7 Which of these nitrogenous bases is found in DNA but not in RNA?
 
End of Question 7


Question 8
8 Which of these is(are) pyrimidines?

Question #13

 
End of Question 8


Question 9
9 In a nucleotide, the nitrogenous base is attached to the sugar's _____ carbon and the phosphate group is attached to the sugar's _____ carbon.
 
End of Question 9


Question 10
10 Nucleic acids are assembled in the _____ direction.
 
End of Question 10


Question 11
11 In a DNA double helix an adenine of one strand always pairs with a(n) _____ of the complementary strand, and a guanine of one strand always pairs with a(n) _____ of the complementary strand.
 
End of Question 11


Question 12
12 Short segments of newly synthesized DNA are joined into a continuous strand by _____.
 
End of Question 12


Question 13
13
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After DNA replication is completed, _____.
 
End of Question 13


Question 14
14 The action of helicase creates _____.
 
End of Question 14


Question 15
15 Why is the new DNA strand complementary to the 3' to 5' strands assembled in short segments?
 
End of Question 15


Question 16
16 An old DNA strand is used as a _____ for the assembly of a new DNA strand.
 
End of Question 16


Question 17
17
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Click on the diagram to start the animation. What name is given to the process in which a strand of DNA is used as a template for the manufacture of a strand of RNA?

 
End of Question 17


Question 18
18
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Click on the diagram to start the animation. What name is given to the process in which the information encoded in a strand of mRNA is used to construct a protein?

 
End of Question 18


Question 19
19 Click on the diagram to start the animation. _____ is the process in which pre-mRNA is edited into mRNA.

 
End of Question 19


Question 20
20 Polypeptides are assembled from _____.
 
End of Question 20


Question 21
21 RNA processing converts the RNA transcript into _____.
 
End of Question 21


Question 22
22 Click on the diagram to start the animation. The gray unit in this animation represents _____.

 
End of Question 22


Question 23
23 Click on the diagram to start the animation. The green unit in this animation represents _____.

 
End of Question 23


Question 24
24
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Click on the diagram to start the animation. The two blue strands in this animation represents _____.

 
End of Question 24


Question 25
25 Which of these correctly illustrates the pairing of DNA and RNA nucleotides?
 
End of Question 25


Question 26
26 The direction of synthesis of an RNA transcript is _____.
 
End of Question 26


Question 27
27 During RNA processing a(n) _____ is added to the 5' end of the RNA.
 
End of Question 27


Question 28
28 During RNA processing a(n) _____ is added to the 3' end of the RNA.
 
End of Question 28


Question 29
29 Spliceosomes are composed of _____.
 
End of Question 29


Question 30
30 The RNA segments joined to one another by spliceosomes are _____.
 
End of Question 30


Question 31
31 Translation occurs in the _____.
 
End of Question 31


Question 32
32 Which of these is a tRNA?

Question #16

 
End of Question 32


Question 33
33 What enzyme catalyzes the attachment of an amino acid to tRNA?
 
End of Question 33


Question 34
34 The tRNA anticodon, GAC, is complementary to the mRNA codon with the sequence _____.
 
End of Question 34


Question 35
35 Click on the diagram to start the animation. What name is given to this process?

 
End of Question 35


Question 36
36 The initiator tRNA attaches at the ribosome's _____ site.
 
End of Question 36


Question 37
37
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The pointer is indicating the virus's _____.

Question #1

 
End of Question 37


Question 38
38
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Viral DNA makes mRNA by the process of _____.
 
End of Question 38


Question 39
39 The lytic cycle of bacteriophage infection ends with the _____.
 
End of Question 39


Question 40
40 The pointer is indicating the _____.

Question #4

 
End of Question 40


Question 41
41 As a result of the lytic cycle, _____.
 
End of Question 41


Question 42
42
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Click on the diagram to start the animation. The arrow is indicating _____.

 
End of Question 42


Question 43
43
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Click on the diagram to start the animation. This animation is illustrating an early stage of _____.

 
End of Question 43


Question 44
44
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In the lysogenic cycle _____.
 
End of Question 44


Question 45
45 Click on the diagram to start the animation. Which of these is the best description of this animation?

 
End of Question 45


Question 46
46 Cycle A is the _____ cycle and cycle B is the _____ cycle.

Question #10

 
End of Question 46


Question 47
47
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The genetic material of HIV consists of _____.
 
End of Question 47


Question 48
48
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Which of these binds to receptor molecules on the host cell membrane?

Question #12

 
End of Question 48


Question 49
49
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What is the function of reverse transcriptase?
 
End of Question 49


Question 50
50
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What is the source of a viral envelope?
 
End of Question 50


Question 51
51
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Which of these is reverse transcriptase?

Question #15

 
End of Question 51


Question 52
52
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Which of these is the viral genome?

Question #16

 
End of Question 52


Question 53
53
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Click on the diagram to start the animation. What enzyme is responsible for the process seen here?

 
End of Question 53


Question 54
54
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Double-stranded viral DNA is incorporated into a host cell as a _____.
 
End of Question 54


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