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DNA Structure and Replication

DNA Structure and Replication
Which is the largest among the followings?

Nucleotide
Nitrogenous base
Phosphate
Carbon

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DNA Structure and Replication
DNA replication in eukaryotes occurs only in

G2 phase
M phase
S phase
G1 phase

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DNA Structure and Replication
Messelsen and Stahl model of replication was called

Cri du Chat
dispersive replication
conservative replication
semi-conservative replication

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DNA Structure and Replication
The RNA primers used to initiate replication in E. coli

are removed by helicase + ATP
are joined together by DNA ligase
are removed by Pol I
result in Okazaki fragments on leading strand

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

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DNA Structure and Replication
After one replication in 15N, how many bands should be observed in a cesium chloride gradient?

Three
A smear
Two
One

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