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WorksheetsDNA Replication
Total questions: 15
Worksheet time: 15mins
direction new nucleotides are synthesized on the new strand
5' to 3' (new nucleotides added to the 3' end)
3' to 5' (new nucleotides added to the 5' end)
3' to 5' (new nucleotides added to the 3' end)
5' to 3' (new nucleotides added to the 5' end)
AATCATGGA
What are the three components of a nucleotide?
sugar, hydrogen, nitrogen base
sugar, oxygen, nitrogen base
sugar, phosphate, nitrogen base
sugar, phosphate, protein
When DNA replicates, each strand of the original DNA molecule is used as a template for the synthesis of a second, complementary strand. Which of the following figures most accurately illustrates enzyme-mediated synthesis of new DNA at a replication fork?
A
B
C
D
The enzyme that unwinds a segment of the DNA molecule is...
DNA polymerase
DNA ligase
RNA primase
DNA polymerase III
helicase
Which of the following are limitations of DNA polymerase?
it can only add bases to the exposed 5' end of a pre-existing strand
it can only replicate the leading strand
it can only replicate the lagging strand
all of the above
none of the above
Which of the following statements about DNA replication is TRUE?
the leading strand is replicated continuously, while the lagging strand is replicated discontinuously
the leading strand is replicated discontinuously, while the lagging strand is replicated continuously
both the leading and lagging strands are replicated continuously
both the leading and lagging strands are replicated discontinuously
each of the leading and lagging strands is replicated both continuously and discontinuously
DNA replication results in two identical daughter molecules each consisting of one old (original) strand and one newly-synthesized strand.
False that it is False
True that it is False
The point where separation of the DNA occurs is called the replication fork.
True that it is True
True that it is False
