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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
Bleomycin
All of these

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

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

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DNA Structure and Replication
If one cell has AT contents 40%, what will be the percentage of Guanine residue?

60%
15%
Guanine residue can not be calculated
30%

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DNA Structure and Replication
Which of the following enzyme adds complementary bases during replication?

Helicase
Polymerase
Replicase
Synthesase

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DNA Structure and Replication
There is a single origin for DNA replication in bacteria. How many origins of replication are found in the much larger genomes of eukaryotes such as mammals?

none of these
About 100
Thousands and tens of thousands
One

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

Telomerase
Primase
DNA ligase
DNA polymerase

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