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DNA Structure and Replication

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

DNA polymerase
helicase
none of these
strandase

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DNA Structure and Replication
What is the approximate percentage of repetitive DNA sequences in human DNA?

40 to 50%
20 to 30%
30 to 40%
10 to 20%

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DNA Structure and Replication
DNA replication takes place in which direction?

Randomly
Vary from organism to organism
3' to 5'
5 'to 3'

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

kinoplast
solenoid
none of these
halonoid

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DNA Structure and Replication
Enzyme, responsible for proofreading base pairing is

DNA ligase
Telomerase
DNA polymerase
Primase

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DNA Structure and Replication
Okazaki fragments occur during

synthesis
transformation
replication
polymerase reaction

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