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DNA Structure and Replication

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

DNA ligase
RNA ligase
polymerase
gyrase

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DNA Structure and Replication
The nucleosome consists of histone

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

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DNA Structure and Replication
Klenow fragment without free nucleotides exhibits

endonuclease activity
no activity
exonuclease activity
nickase activity

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DNA Structure and Replication
DNA replication takes place in which direction?

Randomly
Vary from organism to organism
5 'to 3'
3' to 5'

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DNA Structure and Replication
An important difference between eukaryotic and prokaryotic DNA replication is

RNA primers are not required in eukaryotes
eukaryotic DNA polymerases are faster
multiple origins of replication in eukaryotes
more DNA polymerases are found in eukaryotes

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DNA Structure and Replication
The chromosomal DNA complexes with

two types of histone as H1 and H4
five types of histone as H1, H2A, H2B, H3 and H4
four types of histone as H1, H2A, H3 and H4
three types of histone as H1, H2A and H4

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