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DNA Structure and Replication

DNA Structure and Replication
Messelsen and Stahl model of replication was called

dispersive replication
Cri du Chat
semi-conservative replication
conservative replication

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DNA Structure and Replication
The enzyme responsible for breaking the hydrogen bonds, and thus separating the DNA strands during DNA synthesis is

strandase
none of these
helicase
DNA polymerase

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DNA Structure and Replication
What is the approximate size (in kb) of the E. coli genome?

5500 kilobase
4500 kilobase
6500 kilobase
3000 kilobase

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DNA Structure and Replication
What is the name given to the points at which a DNA helix is unwound and new strands develop?

Replication origins
Replication forks
Leading strands
Okazaki fragments

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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
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?

Thousands and tens of thousands
One
About 100
none of these

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