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DNA Structure and Replication

DNA Structure and Replication
Number of times the two DNA strands are interwined in circular DNA and is known as

none of these
twisting number
linking number
helix frequency

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DNA Structure and Replication
The packing ratio of nucleosomes is about

8
7
6
9

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DNA Structure and Replication
The enzyme responsible for breaking the hydrogen bonds, and thus separating the DNA strands during DNA synthesis is

helicase
strandase
none of these
DNA polymerase

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DNA Structure and Replication
Which of the following would not contain DNA?

Bacteria
Mold
Glass crystals
Yeast

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DNA Structure and Replication
What is the approximate size (in kb) of the E. coli genome?

4500 kilobase
5500 kilobase
6500 kilobase
3000 kilobase

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DNA Structure and Replication
The DNA is negatively super coiled, complexes to histone,

H-NS
All of these
HU
HSP-1

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