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DNA Structure and Replication

DNA Structure and Replication
The accepted hypothesis for DNA replication is

dispersive theory
evolutionary theory
semi-conservative theory
conservative theory

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DNA Structure and Replication
The size of a linear DNA fragment in a gel can be estimated by

comparison with a molecular weight standard such as Hind III digested phage lambda
the sedimentation coefficient
fluorescence in UV light
the time it takes the gel to run

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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
What bands will be observed in a cesium chloride gradient after two rounds of replication?

One medium band
One light, one medium and one heavy band
One light and one medium band
One medium and one heavy band

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DNA Structure and Replication
The site on a bacterial chromosome that marks the initiation point for chromosome replication is called

Pro
an initiation codon
a promoter
Ori

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DNA Structure and Replication
The packing ratio of nucleosomes is about

9
8
7
6

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