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DNA Structure and Replication

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

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

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DNA Structure and Replication
Which of the following are short nucleotides strands made by DNA polymerase working in the opposite direction of the replication fork?

Primers
Leading strands
Lagging strand
Okazaki fragments

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DNA Structure and Replication
The size of a linear DNA fragment in a gel can be estimated by

the sedimentation coefficient
the time it takes the gel to run
comparison with a molecular weight standard such as Hind III digested phage lambda
fluorescence in UV light

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DNA Structure and Replication
In DNA, guanine pairs with

Adenine
Cytosine
Uracil
Thymine

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DNA Structure and Replication
Proteins which help to open the double helix for DNA synthesis are

DNA topoisomerase
DNA helicases
ligase
single stranded binding proteins

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

Bleomycin
All of these
Erythromycin
Tunicamycin

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