Exercise: Dna Structure And Replication

Questions for: Dna Structure And Replication

Which enzyme catalyzes the elongation of DNA molecules?
A:
DNA polymerase
B:
Helicase
C:
DNA ligase
D:
Primase
Answer: A
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DNA replication results in
A:
two completely new DNA molecules
B:
two DNA molecules such that each one contains a strand of the original
C:
one new DNA molecules 1 old molecule
D:
one new molecule of RNA
Answer: B
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Replication in E. coli is initiated by the generation of short RNA primers using
A:
RNA polymerase
B:
primase
C:
reverse transcriptase
D:
both (a) and (b)
Answer: D
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Which of these drugs bind to DNA and cuts it, producing hydroxyl radicals?
A:
Bleomycin
B:
Erythromycin
C:
Tunicamycin
D:
All of these
Answer: A
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Which of the following are short nucleotides strands made by DNA polymerase working in the opposite direction of the replication fork?
A:
Leading strands
B:
Okazaki fragments
C:
Primers
D:
Lagging strand
Answer: B
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