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DNA Structure and Replication

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

dispersive replication
semi-conservative replication
conservative replication
Cri du Chat

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DNA Structure and Replication
DNA gyrase in E. coli

adds positive supercoils to chromosomal DNA
is required only at the oriC site
performs the same function as helicase in eukaryotes
can be inhibited with antibiotics

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DNA Structure and Replication
DNA replication results in

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

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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?

Leading strands
Okazaki fragments
Primers
Lagging strand

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DNA Structure and Replication
Okazaki fragments occur during

polymerase reaction
replication
synthesis
transformation

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DNA Structure and Replication
The DNA is negatively super coiled, complexes to histone,

HSP-1
H-NS
HU
All of these

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