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DNA Structure and Replication

DNA Structure and Replication
The nicks or gaps between Okazaki fragments are eventually sealed by

polymerase
DNA ligase
RNA ligase
gyrase

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DNA Structure and Replication
Proteins involved in opening a replication bubble are

DNA helicases
DNA topoisomerase
ligase
single stranded binding proteins

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DNA Structure and Replication
In DNA double helix, the two DNA chains are held together by

hydrogen bonds between the pair of bases
ionic bonds between the pair of bases
covalent bonds between the pair of bases
None of these

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DNA Structure and Replication
Automated DNA sequencing uses the chain termination method

with no primer
but with an oligonucleotide primer labeled with a fluorescent dye
but with a polynucleotide primer labeled with a fluorescent dye
either (b) or (c)

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

absorption
density
resorption
adhesion

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DNA Structure and Replication
Klenow fragment without free nucleotides exhibits

no activity
exonuclease activity
endonuclease activity
nickase activity

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