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DNA Structure and Replication

DNA Structure and Replication
An RNA primer is synthesized by

primase
DNA topoisomerase
DNA helicases
ligase

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DNA Structure and Replication
Who's X-ray work aided Watson and Crick in their discovery of the double helix?

L. Pauling
R. Franklin
Leaderberg
W.H. Bragg

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DNA Structure and Replication
In DNA double helix, the two DNA chains are held together by

hydrogen bonds between the pair of bases
None of these
covalent bonds between the pair of bases
ionic bonds between the pair of bases

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DNA Structure and Replication
TM refers to the temperature at which

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

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DNA Structure and Replication
Each replication bubbles consists of

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

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DNA Structure and Replication
The packing ratio of nucleosomes is about

7
8
9
6

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