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DNA Structure and Replication

DNA Structure and Replication
For the DNA replication in eukaryotes, the cell cycle consists of

G2 and M phases
G1, G2 and M phases
G1,S, G2 and M phases
S, G2 and M phases

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DNA Structure and Replication
The packing ratio of nucleosomes is about

7
8
6
9

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

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DNA Structure and Replication
What is the main damaging effect of UV radiation on DNA?

Depurination
Formation of thymine dimers
Dehydration
Single strand break

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

semi-conservative replication
conservative replication
Cri du Chat
dispersive replication

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DNA Structure and Replication
One hypothesis of DNA replication suggested that the parental DNA molecules are broken into fragments. Both strands of DNA in each of the daughter molecules are made up of an assortment of parental and new DNA. This statement refers to which hypothesis?

Dispersive theory
Semi-conservative theory
Conservative theory
Evolutionary theory

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