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DNA Structure and Replication

DNA Structure and Replication
The enzyme responsible for breaking the hydrogen bonds, and thus separating the DNA strands during DNA synthesis is

none of these
strandase
helicase
DNA polymerase

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DNA Structure and Replication
Which of these drugs bind to DNA and cuts it, producing hydroxyl radicals?

Tunicamycin
Bleomycin
Erythromycin
All of these

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DNA Structure and Replication
DNA replication results in

two completely new DNA molecules
two DNA molecules such that each one contains a strand of the original
one new DNA molecules 1 old molecule
one new molecule of RNA

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DNA Structure and Replication
Which histone(s) are associated with the linker DNA of a nucleosome?

Histone H3
Histones H2A and H2B
Histone H4
Histone H1

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DNA Structure and Replication
Messelsen and Stahl model of replication was called

Cri du Chat
dispersive replication
conservative replication
semi-conservative replication

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DNA Structure and Replication
Which of the following are short nucleotides strands made by DNA polymerase working in the opposite direction of the replication fork?

Lagging strand
Leading strands
Okazaki fragments
Primers

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