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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?

Tunicamycin
Erythromycin
All of these
Bleomycin

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

replication
transformation
transduction
translation

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DNA Structure and Replication
When DNA polymerase is in contact with guanine in the parental strand, what does it add to the growing daughter strand?

Uracil
Cytosine
Phosphate
Guanine

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

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DNA Structure and Replication
How does ethidium bromide interact with DNA?

It binds to adenine
It intercalates between bases
It does not interact
It binds to phosphate

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DNA Structure and Replication
In the study of one experiment it was found that the value of Tm for DNA is = 40° C. If the cell has 20% GC at the above Tm, then what will be value of 'Tm' if the GC% increases to 60%?

Decreases
Increases
Can not be compared
Remains same

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