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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
strandase
none of these
helicase

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DNA Structure and Replication
Which DNA polymerase removes RNA primers in DNA synthesis?

Polymerase II
none of these
Polymerase I
Polymerase III

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DNA Structure and Replication
A cesium chloride will separate DNA molecules by

adhesion
density
absorption
resorption

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DNA Structure and Replication
Telomeres are usually rich in which nucleotide?

Thymine
Cytosine
Adenine
Guanine

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DNA Structure and Replication
The role of primase is to

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

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DNA Structure and Replication
Replication in E. coli is initiated by the generation of short RNA primers using

primase
RNA polymerase
both (a) and (b)
reverse transcriptase

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