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DNA Structure and Replication

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

semi-conservative replication
Cri du Chat
dispersive replication
conservative replication

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

DNA ligase
Helicase
Primase
DNA polymerase

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DNA Structure and Replication
The overall conclusion of the Hershey-Chase experiment was that

proteins and DNA were responsible for heredity
the ratio of Adenine to thymine was always the same
DNA was responsible for heredity
phage DNA was similar to bacterial DNA

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DNA Structure and Replication
DNA replication in eukaryotes occurs only in

G1 phase
G2 phase
S phase
M phase

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DNA Structure and Replication
Which of the following enzyme adds complementary bases during replication?

Replicase
Helicase
Polymerase
Synthesase

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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?

none of these
Thousands and tens of thousands
About 100
One

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