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DNA Structure and Replication

DNA Structure and Replication
DNA replication in eukaryotes occurs only in

G2 phase
G1 phase
M phase
S phase

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DNA Structure and Replication
DNA replication results in

one new DNA molecules 1 old molecule
two DNA molecules such that each one contains a strand of the original
one new molecule of RNA
two completely new DNA molecules

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DNA Structure and Replication
The size of a linear DNA fragment in a gel can be estimated by

the sedimentation coefficient
fluorescence in UV light
the time it takes the gel to run
comparison with a molecular weight standard such as Hind III digested phage lambda

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

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DNA Structure and Replication
DNA gyrase in E. coli

performs the same function as helicase in eukaryotes
is required only at the oriC site
can be inhibited with antibiotics
adds positive supercoils to chromosomal DNA

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DNA Structure and Replication
Which of the following is not a structural motif in DNA binding proteins?

zinc finger
TFIID
bZIP
helix-turn-helix

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