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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

restriction endonuclease
transposase
reverse transcriptase
helicase

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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?

Phosphate
Uracil
Cytosine
Guanine

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DNA Structure and Replication
Okazaki fragments occur during

transformation
polymerase reaction
synthesis
replication

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

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

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DNA Structure and Replication
Klenow fragment without free nucleotides exhibits

exonuclease activity
endonuclease activity
no activity
nickase activity

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DNA Structure and Replication
Which of the following in DNA replication and transcription are common?

synthesis in the 5'-3' direction
incorporation of deoxynucleotides
None of these
utilization the same enzyme

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