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DNA Structure and Replication

DNA Structure and Replication
In an agarose gel, DNA is moving from

anode to cathode
cathode to anode
A to B
left to right

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

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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
utilization the same enzyme
None of these
incorporation of deoxynucleotides

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DNA Structure and Replication
What is the range of melting point temperatures (Tm) for most DNA molecules?

50 to 60°C
80 to l00°C
60 to 80°C
70 to 90°C

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DNA Structure and Replication
Proteins involved in opening a replication bubble are

DNA topoisomerase
single stranded binding proteins
DNA helicases
ligase

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DNA Structure and Replication
What is the name given to the points at which a DNA helix is unwound and new strands develop?

Replication origins
Replication forks
Leading strands
Okazaki fragments

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