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DNA Structure and Replication

DNA Structure and Replication
What is the name given to the points at which a DNA helix is unwound and new strands develop?

Okazaki fragments
Replication origins
Replication forks
Leading strands

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DNA Structure and Replication
Okazaki fragments occur on the __________ and are bonded together by __________

tRNA, polymerase
Lagging strand, ligase
mRNA, anticodons
Leading strand, polymerase

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DNA Structure and Replication
During conventional transformation experiments E. coli cells and plasmid DNA interacts in an environment of

low temperature and Ca++
low temperature and Mg++
high temperature and Mg++
high temperature and Ca++

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

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DNA Structure and Replication
What is the approximate size (in kb) of the E. coli genome?

5500 kilobase
6500 kilobase
4500 kilobase
3000 kilobase

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DNA Structure and Replication
DNA replication in eukaryotes occurs only in

M phase
S phase
G1 phase
G2 phase

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