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DNA Structure and Replication

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

B
H
S
None of these

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DNA Structure and Replication
Klenow fragment without free nucleotides exhibits

nickase activity
exonuclease activity
no activity
endonuclease activity

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DNA Structure and Replication
Each replication bubbles consists of

4 replication forks
1 replication forks
2 replication forks
3 replication forks

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DNA Structure and Replication
An enzyme that recognizes foreign DNA, and results in a cut in that DNA is called

restriction endonuclease
reverse transcriptase
helicase
transposase

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DNA Structure and Replication
The melting of 40-45 bp at the oriC site of E. coli requires

DNA + ATP + HU + DNAb
DNA+ ATP + HU + DNAb + DNAa
DNA + ATP + HU + DNAb + DNAa + Pol III holoenzyme
DNA + ATP + HU

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DNA Structure and Replication
Replication in E. coli is initiated by the generation of short RNA primers using

primase
reverse transcriptase
RNA polymerase
both (a) and (b)

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