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DNA Structure and Replication

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

Nitrogenous base
Phosphate
Nucleotide
Carbon

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

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

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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
Conservative theory
Evolutionary theory
Semi-conservative theory

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DNA Structure and Replication
How does ethidium bromide interact with DNA?

It intercalates between bases
It does not interact
It binds to adenine
It binds to phosphate

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DNA Structure and Replication
In DNA double helix, the two DNA chains are held together by

covalent bonds between the pair of bases
ionic bonds between the pair of bases
None of these
hydrogen bonds between the pair of bases

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DNA Structure and Replication
The DNA is negatively super coiled, complexes to histone,

All of these
HU
H-NS
HSP-1

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