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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

reverse transcriptase
helicase
restriction endonuclease
transposase

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DNA Structure and Replication
Automated DNA sequencing uses the chain termination method

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

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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
Guanine
Phosphate

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DNA Structure and Replication
Okazaki fragments occur on the __________ and are bonded together by __________

tRNA, polymerase
Leading strand, polymerase
mRNA, anticodons
Lagging strand, ligase

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DNA Structure and Replication
DNA gyrase in E. coli

can be inhibited with antibiotics
is required only at the oriC site
performs the same function as helicase in eukaryotes
adds positive supercoils to chromosomal DNA

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DNA Structure and Replication
The site on a bacterial chromosome that marks the initiation point for chromosome replication is called

Ori
Pro
an initiation codon
a promoter

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