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DNA Structure and Replication

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

a promoter
an initiation codon
Pro
Ori

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DNA Structure and Replication
After one replication in 15N, how many bands should be observed in a cesium chloride gradient?

A smear
One
Three
Two

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DNA Structure and Replication
Klenow fragment without free nucleotides exhibits

no activity
exonuclease activity
nickase activity
endonuclease activity

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

All of these
HU
HSP-1
H-NS

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DNA Structure and Replication
The most common liquid volumes in molecular biology are measured in

nl
ml
μl
1

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DNA Structure and Replication
What is the approximate percentage of repetitive DNA sequences in human DNA?

40 to 50%
20 to 30%
30 to 40%
10 to 20%

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