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DNA Structure and Replication

DNA Structure and Replication
A cesium chloride will separate DNA molecules by

density
resorption
absorption
adhesion

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

HU
H-NS
HSP-1
All of these

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DNA Structure and Replication
Which of the following is not a structural motif in DNA binding proteins?

zinc finger
bZIP
TFIID
helix-turn-helix

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DNA Structure and Replication
Which polymerase is active in DNA repairing

none of these
Polymerase I
Polymerase III
Polymerase II

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DNA Structure and Replication
DNA gyrase in E. coli

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

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DNA Structure and Replication
The accepted hypothesis for DNA replication is

dispersive theory
evolutionary theory
semi-conservative theory
conservative theory

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