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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?

A smear
One
Three
Two

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DNA Structure and Replication
Which of the following would not contain DNA?

Bacteria
Yeast
Mold
Glass crystals

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DNA Structure and Replication
Number of times the two DNA strands are interwined in circular DNA and is known as

linking number
helix frequency
none of these
twisting number

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

Helicase
Synthesase
Polymerase
Replicase

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DNA Structure and Replication
Which of the following in DNA replication and transcription are common?

synthesis in the 5'-3' direction
utilization the same enzyme
None of these
incorporation of deoxynucleotides

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DNA Structure and Replication
The enzyme responsible for breaking the hydrogen bonds, and thus separating the DNA strands during DNA synthesis is

DNA polymerase
none of these
helicase
strandase

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