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DNA Structure and Replication

DNA Structure and Replication
DNA replication takes place in which direction?

Randomly
3' to 5'
5 'to 3'
Vary from organism to organism

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DNA Structure and Replication
The packing ratio of nucleosomes is about

6
7
8
9

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

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

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

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DNA Structure and Replication
In DNA replication, one new strand is synthesized complementary to an old (parent) strand and is referred as

antiparallel
semiconservative
discontinuous
mutational

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DNA Structure and Replication
DNA with a G-C content of 50% will melt at approximately

70 °C
60°C
100 °C
90 °C

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