October Bio 1201 DNA Start QUESTIONS
AND ANSWERS
In the accompanying image, a nucleotide is indicated by the letter _____.
B. (The one squared off, inside the double helix)
Which of these is a difference between a DNA and an RNA molecule?
DNA is usually double-stranded, whereas RNA is usually single-stranded.
This is an image of a(n) _____.
http://session.masteringbiology.com/problemAsset/1100552/3/1608q.jpg
nucleotide
The letter A indicates a _____.
http://session.masteringbiology.com/problemAsset/1100552/3/1608q.jpg
phosphate group
A nitrogenous base is indicated by the letter _____.
http://session.masteringbiology.com/problemAsset/1100552/3/1608q.jpg
C
You can tell that this is an image of a DNA nucleotide and not an RNA nucleotide
because you see a ____
http://session.masteringbiology.com/problemAsset/1100552/3/1608q.jpg
sugar with two, and not three, oxygen atoms
Which of these nitrogenous bases is found in DNA but not in RNA?
thymine
Pyrimidines:
Pyrimidines are single-ring structures.
In a nucleotide, the nitrogenous base is attached to the sugar's _____ carbon and
the phosphate group is attached to the sugar's _____ carbon.
1' ... 5'
, Nucleic acids are assembled in the _____ direction.
5' to 3'
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.
thymine ... cytosine
After DNA replication is completed, _____.
each new DNA double helix consists of one old DNA strand and one new DNA strand
The first step in the replication of DNA is catalyzed by _____.
helicase
The action of helicase creates ____.
replication forks and replication bubbles
Why is the new DNA strand complementary to the 3' to 5' strands assembled in
short segments?
DNA polymerase can assemble DNA only in the 5' to 3' direction
The synthesis of a new strand begins with the synthesis of a(n) _____.
RNA primer complementary to a preexisting DNA strand
An old DNA strand is used as a _____ for the assembly of a new DNA strand.
template
Which of the following is/are inputs required for photosynthesis?
Carbon Dioxide
The Calvin Cycle occurs in the
Stroma
Calvin Cycle Input
Carbon Dioxide
Non-cyclic photophosphorylation produces (outputs)?
ATP and NADPH + H+
A researcher isolates a chloroplast and decreases the pH inside the individual
thylakoids. Assuming that there is abundant light energy and CO2 and that there
are no other changes to this chloroplast indicate whether the following statement
if True or False.
AND ANSWERS
In the accompanying image, a nucleotide is indicated by the letter _____.
B. (The one squared off, inside the double helix)
Which of these is a difference between a DNA and an RNA molecule?
DNA is usually double-stranded, whereas RNA is usually single-stranded.
This is an image of a(n) _____.
http://session.masteringbiology.com/problemAsset/1100552/3/1608q.jpg
nucleotide
The letter A indicates a _____.
http://session.masteringbiology.com/problemAsset/1100552/3/1608q.jpg
phosphate group
A nitrogenous base is indicated by the letter _____.
http://session.masteringbiology.com/problemAsset/1100552/3/1608q.jpg
C
You can tell that this is an image of a DNA nucleotide and not an RNA nucleotide
because you see a ____
http://session.masteringbiology.com/problemAsset/1100552/3/1608q.jpg
sugar with two, and not three, oxygen atoms
Which of these nitrogenous bases is found in DNA but not in RNA?
thymine
Pyrimidines:
Pyrimidines are single-ring structures.
In a nucleotide, the nitrogenous base is attached to the sugar's _____ carbon and
the phosphate group is attached to the sugar's _____ carbon.
1' ... 5'
, Nucleic acids are assembled in the _____ direction.
5' to 3'
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.
thymine ... cytosine
After DNA replication is completed, _____.
each new DNA double helix consists of one old DNA strand and one new DNA strand
The first step in the replication of DNA is catalyzed by _____.
helicase
The action of helicase creates ____.
replication forks and replication bubbles
Why is the new DNA strand complementary to the 3' to 5' strands assembled in
short segments?
DNA polymerase can assemble DNA only in the 5' to 3' direction
The synthesis of a new strand begins with the synthesis of a(n) _____.
RNA primer complementary to a preexisting DNA strand
An old DNA strand is used as a _____ for the assembly of a new DNA strand.
template
Which of the following is/are inputs required for photosynthesis?
Carbon Dioxide
The Calvin Cycle occurs in the
Stroma
Calvin Cycle Input
Carbon Dioxide
Non-cyclic photophosphorylation produces (outputs)?
ATP and NADPH + H+
A researcher isolates a chloroplast and decreases the pH inside the individual
thylakoids. Assuming that there is abundant light energy and CO2 and that there
are no other changes to this chloroplast indicate whether the following statement
if True or False.
