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DNA Structure and Replication

DNA Structure and Replication
An enzyme that recognizes foreign DNA, and results in a cut in that DNA is called

helicase
transposase
reverse transcriptase
restriction endonuclease

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DNA Structure and Replication
DNA replication takes place in which direction?

Randomly
5 'to 3'
3' to 5'
Vary from organism to organism

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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
Automated DNA sequencing uses the chain termination method

with no primer
but with an oligonucleotide primer labeled with a fluorescent dye
either (b) or (c)
but with a polynucleotide primer labeled with a fluorescent dye

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DNA Structure and Replication
The packing ratio of nucleosomes is about

8
7
9
6

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DNA Structure and Replication
In DNA, guanine pairs with

Thymine
Uracil
Cytosine
Adenine

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