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DNA Structure and Replication

DNA Structure and Replication
In DNA, guanine pairs with

Adenine
Uracil
Thymine
Cytosine

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DNA Structure and Replication
What does ligase do during replication of DNA?

Makes copies of mRNA from DNA
Digests mRNA when it is no longer needed
Joins nicks in DNA strands
Synthesizes the lagging strand

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DNA Structure and Replication
Which of these drugs bind to DNA and cuts it, producing hydroxyl radicals?

Erythromycin
All of these
Bleomycin
Tunicamycin

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

dispersive replication
semi-conservative replication
conservative replication
Cri du Chat

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

Primase
DNA ligase
Helicase
DNA polymerase

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

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

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