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DNA STRUCTURE AND REPLICATION

DNA Structure and Replication
Which enzyme catalyzes the elongation of DNA molecules?

DNA ligase
DNA polymerase
Helicase
Primase

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DNA Structure and Replication
What is the IUPAC code for an A, C, T ambiguity in a nucleic acid sequence?

H
B
S
None of these

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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?

About 100
none of these
Thousands and tens of thousands
One

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

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

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

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

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