Chapter 16: The Molecular Basis of Inheritance
 
Activities Quiz
 

Activities Quiz


1 .       This is an image of a _____. (Activity: The Hershey-Chase Experiment)

question #1 

 bacterium
 red blood cell
 phage
 moneran
 protist


2 .       Who demonstrated that DNA is the genetic material of the T2 phage? (Activity: The Hershey-Chase Experiment) 

 Franklin
 Hershey and Chase
 Meselson and Stahl
 Watson and Crick
 Darwin and Wallace


3 .       The radioactive isotope 32P labels the T2 phage's _____. (Activity: The Hershey-Chase Experiment) 

 DNA
 tail
 base plate
 protein coat
 head


4 .       Hershey and Chase used _____ to radioactively label the T2 phage's proteins. (Activity: The Hershey-Chase Experiment) 

 35S
 14C
 222Ra
 32P
 92U


5 .       After allowing phages grown with bacteria in a medium that contained 32P and 35S, Hershey and Chase used a centrifuge to separate the phage ghosts from the infected cell. They then examined the infected cells and found that they contained _____, which demonstrated that _____ is the phage's genetic material. (Activity: The Hershey-Chase Experiment) 

 labeled protein ... DNA
 labeled protein .... protein
 labeled DNA ... labeled protein
 labeled DNA .... protein
 labeled DNA ... DNA


6 .       In the accompanying image, a nucleotide is indicated by the letter _____. (Activity: DNA and RNA Structure)

question #6 

 A
 B
 C
 D
 E


7 .       Which of these is a difference between a DNA and an RNA molecule? (Activity: DNA and RNA Structure) 

 DNA contains uracil, whereas RNA contains thymine.
 DNA is a polymer composed of nucleotides, whereas RNA is a polymer composed of nucleic acids.
 DNA is double-stranded, whereas RNA is single-stranded.
 DNA contains five-carbon sugars, whereas RNA contains six-carbon sugars.
 DNA contains nitrogenous bases, whereas RNA contains phosphate groups.


8 .       This is an image of a(n) _____. (Activity: DNA and RNA Structure)

question #8 

 amino acid
 nucleic acid
 thiol
 nucleotide
 none of the above


9 .       The letter A indicates a _____. (Activity: DNA and RNA Structure)

question #9 

 phosphate group
 nucleotide
 nitrogenous base
 sugar
 none of the above


10 .       A nitrogenous base is indicated by the letter _____. (Activity: DNA and RNA Structure)

question #10 

 A
 B
 C
 D
 E


11 .       You can tell that this is an image of a DNA nucleotide and not an RNA nucleotide because you see a _____. (Activity: DNA and RNA Structure)

question #11 

 thymine nitrogenous base, not a uracil nitrogenous base
 sugar with two, and not three, oxygen atoms
 double-stranded molecule, not a single-stranded molecule
 phosphate group, not a uracil
 uracil nitrogenous base, not a thymine nitrogenous base


12 .       Which of these nitrogenous bases is found in DNA but not in RNA? (Activity: DNA and RNA Structure) 

 adenine
 cytosine
 guanine
 thymine
 uracil


13 .       Which of these is(are) pyrimidines? (Activity: DNA and RNA Structure)

question #13 

 A and B
 A, B, and C
 B and C
 B, C, and D
 C, D, and E


14 .       In a nucleotide, the nitrogenous base is attached to the sugar's _____ carbon and the phosphate group is attached to the sugar's _____ carbon. (Activity: DNA and RNA Structure) 

 1' ... 2'
 1' ... 5'
 2' ... 3'
 1' ... 3'
 2' ... 1'


15 .       Nucleic acids are assembled in the _____ direction. (Activity: DNA and RNA Structure) 

 1' to 5'
 2' to 3'
 5' to 3'
 4' to 5'
 5' to 1'


16 .       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. (Activity: DNA and RNA Structure),(Activity: DNA Double Helix), ( Activity: DNA Replication: A Closer Look) 

 guanine ... adenine
 cytosine ... uracil
 cytosine ... thymine
 thymine ... cytosine
 uracil ... cytosine


17 .       Short segments of newly synthesized DNA are joined into a continuous strand by _____. (Activity: DNA Replication: An Overview), (Activity: DNA Replication: A Review) 

 helicase
 DNA polymerase
 ligase
 primase
 single-strand binding protein


18 .       After DNA replication is completed, _____. (Activity: DNA Replication: An Overview), (Activity: DNA Replication: A Closer Look), (Activity: DNA Replication: A Review) 

 each new DNA double helix consists of one old DNA strand and one new DNA strand
 each new DNA double helix consists of two new strands
 one DNA double helix consists of two old strands and one DNA double helix consists of two new strands
 each of the four DNA strands consists of some old strand parts and some new strand parts
 there are four double helices


19 .       The first step in the replication of DNA is catalyzed by _____. (Activity: DNA Replication: A Closer Look), (Activity: DNA Replication: A Review) 

 helicase
 DNA polymerase
 ligase
 primase
 single-strand binding protein


20 .       The action of helicase creates _____. (Activity: DNA Replication: An Overview), (Activity: DNA Replication: A Closer Look), (Activity: DNA Replication: A Review) 

 primers and DNA fragments
 primers and replication bubbles
 DNA fragments and replication forks
 replication forks and replication bubbles
 DNA fragments and replication bubbles


21 .       Why is the new DNA strand complementary to the 3' to 5' strands assembled in short segments? (Activity: DNA Replication: An Overview), (Activity: DNA Replication: A Closer Look), (Activity: DNA Replication: A Review) 

 the replication forks block the formation of longer strands
 DNA polymerase can assemble DNA only in the 3' to 5' direction
 DNA polymerase can assemble DNA only in the 5' to 3' direction
 it is more efficient than assembling complete new strands
 only short DNA sequences can extend off the RNA primers


22 .       The synthesis of a new strand begins with the synthesis of a(n) _____. (Activity: DNA Replication: A Closer Look), (Activity: DNA Replication: A Review) 

 single-strand binding protein
 Okazaki fragment
 poly(A) tail
 short pieces of DNA
 RNA primer complementary to a preexisting DNA strand


23 .       Which of these is responsible for catalyzing the formation of an RNA primer? (Activity: DNA Replication: A Review)

question23 

 A
 B
 C
 D
 E


24 .       An old DNA strand is used as a _____ for the assembly of a new DNA strand. (Activity: DNA Replication: An Overview), (Activity: DNA Replication: A Closer Look), (Activity: DNA Replication: A Review) 

 complement
 primer
 template
 source of nucleotides
 model







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