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DNA Structure and Replication

DNA Structure and Replication
Enzyme, responsible for proofreading base pairing is

DNA polymerase
Primase
DNA ligase
Telomerase

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

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

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DNA Structure and Replication
Each replication bubbles consists of

1 replication forks
2 replication forks
3 replication forks
4 replication forks

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DNA Structure and Replication
The melting of 40-45 bp at the oriC site of E. coli requires

DNA + ATP + HU + DNAb + DNAa + Pol III holoenzyme
DNA + ATP + HU + DNAb
DNA + ATP + HU
DNA+ ATP + HU + DNAb + DNAa

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DNA Structure and Replication
DNA polymerases I also has

3'-5'exonuclease activity
both (a) and (b)
5'-3' endonuclease activity
5'-3' exonuclease activity

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

restriction endonuclease
helicase
reverse transcriptase
transposase

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