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DNA Structure and Replication

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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DNA Structure and Replication
Which of these drugs bind to DNA and cuts it, producing hydroxyl radicals?

Erythromycin
Tunicamycin
Bleomycin
All of these

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DNA Structure and Replication
DNA helicase is used to

interact the double helix closely
break a phosphodiester bond in DNA strand
unwind the double helix
None of these

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

helicase
primase
DNA polymerase
DNA ligase

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DNA Structure and Replication
The packing ratio of nucleosomes is about

9
7
8
6

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DNA Structure and Replication
The role of primase is to

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

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