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DNA Structure and Replication

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

gyrase
polymerase
RNA ligase
DNA ligase

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DNA Structure and Replication
Klenow fragment without free nucleotides exhibits

exonuclease activity
endonuclease activity
nickase activity
no activity

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

HSP-1
All of these
H-NS
HU

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DNA Structure and Replication
The nucleosome consists of histone

hexamer and 146 bp of DNA
octamer and 146 bp of DNA
None of these
tetramer and 146 bp of DNA

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DNA Structure and Replication
Deoxyribonucleoside triphosphates, being need in the chain termination methods are

all of these
dATP
dTTP
dGTP and dCTP

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DNA Structure and Replication
An enzyme that recognizes foreign DNA, and results in a cut in that DNA is called

transposase
helicase
reverse transcriptase
restriction endonuclease

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