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DNA Structure and Replication

DNA Structure and Replication
What is the exact name of the classical Watson-Crick double helix DNA?

B-DNA
Z-DNA
X-DNA
A-DNA

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DNA Structure and Replication
TM refers to the temperature at which

50% of a DNA molecule is denatured
50% of a protein molecules are denatured
All of these
membranes are 50% fluid

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DNA Structure and Replication
The nucleosome consists of histone

None of these
octamer and 146 bp of DNA
tetramer and 146 bp of DNA
hexamer and 146 bp of DNA

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DNA Structure and Replication
Which will require a higher temperature to denature?

DNA with a high A-T content
DNA with a high G-C content
RNA with a high G-C content
RNA with a high A-T content

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DNA Structure and Replication
After one replication in 15N, how many bands should be observed in a cesium chloride gradient?

Three
Two
A smear
One

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DNA Structure and Replication
Overwinding or overtightening of DNA during replication is caused and removed by

DNAb, gyrase
DNAa, gyrase
Single stranded protein, DNAa
DNAb, DNA polymerase

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