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DNA Structure and Replication

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

Bleomycin
Erythromycin
Tunicamycin
All of these

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DNA Structure and Replication
The melting of 40-45 bp at the oriC site of E. coli requires

DNA + ATP + HU + DNAb
DNA + ATP + HU + DNAb + DNAa + Pol III holoenzyme
DNA + ATP + HU
DNA+ ATP + HU + DNAb + DNAa

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DNA Structure and Replication
What is the name given to the points at which a DNA helix is unwound and new strands develop?

Replication forks
Leading strands
Okazaki fragments
Replication origins

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DNA Structure and Replication
First evident that DNA is genetic material comes from the experiment of Griffith is

transduction
translation
replication
transformation

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DNA Structure and Replication
Without telomerase, what would happen to the ends of chromosomes after each round of replication?

Chromosomes would become progressively shorter
Chromosomes would get longer
Nothing would happen
None of these

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DNA Structure and Replication
After one replication in 15N, how many bands should be observed in a cesium chloride gradient?

One
A smear
Two
Three

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