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DNA Structure and Replication

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

Three
One
Two
A smear

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DNA Structure and Replication
DNAs when charged, migrate in a gel towards the

negative pole
positive pole
will not migrate
none of these

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

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

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DNA Structure and Replication
Enzymes, responsible for unraveling short segments of DNA is

helicase
DNA ligase
DNA polymerase
primase

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

Cri du Chat
dispersive replication
semi-conservative replication
conservative replication

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DNA Structure and Replication
Without telomerase, what would happen to the ends of chromosomes after each round of replication?

None of these
Nothing would happen
Chromosomes would get longer
Chromosomes would become progressively shorter

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