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DNA Structure and Replication

DNA Structure and Replication
The accepted hypothesis for DNA replication is

evolutionary theory
semi-conservative theory
conservative theory
dispersive theory

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DNA Structure and Replication
30 nm wide helix with five or six nucleosomes per helix is known as

none of these
halonoid
kinoplast
solenoid

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DNA Structure and Replication
What bands will be observed in a cesium chloride gradient after two rounds of replication?

One light, one medium and one heavy band
One light and one medium band
One medium and one heavy band
One medium band

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DNA Structure and Replication
Klenow fragment without free nucleotides exhibits

no activity
exonuclease activity
endonuclease activity
nickase activity

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

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

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DNA Structure and Replication
The role of primase is to

dismantle RNA primer
proofread base pairing
cleave and unwinds short sections of DNA ahead of the replication fork
synthesize an RNA primer to begin the elongation process

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