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DNA Structure and Replication

DNA Structure and Replication
In an agarose gel, DNA is moving from

cathode to anode
anode to cathode
A to B
left to right

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DNA Structure and Replication
What is the range of melting point temperatures (Tm) for most DNA molecules?

70 to 90°C
80 to l00°C
50 to 60°C
60 to 80°C

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

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

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DNA Structure and Replication
Which of the following species lack a 'classical' histone H1?

Saccharomyces cerevisiae
Xenopus laevis
Strongylocentrotus purpuratus
Arabidopsis thaliana

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DNA Structure and Replication
In a cesium chloride gradient, DNA labeled with 15N and centrifuged will form a band

all of these
above DNA containing 14N
below DNA containing 14N
with 14N-containing DNA

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DNA Structure and Replication
Okazaki fragments occur on the __________ and are bonded together by __________

tRNA, polymerase
mRNA, anticodons
Leading strand, polymerase
Lagging strand, ligase

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