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DNA Structure and Replication

DNA Structure and Replication
Which of the following is not a structural motif in DNA binding proteins?

bZIP
TFIID
zinc finger
helix-turn-helix

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

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

conservative replication
Cri du Chat
dispersive replication
semi-conservative replication

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

DNA polymerase
helicase
primase
DNA ligase

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DNA Structure and Replication
Which of the following enzyme adds complementary bases during replication?

Helicase
Synthesase
Replicase
Polymerase

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DNA Structure and Replication
There is a single origin for DNA replication in bacteria. How many origins of replication are found in the much larger genomes of eukaryotes such as mammals?

Thousands and tens of thousands
none of these
One
About 100

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