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DNA Structure and Replication

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

6500 kilobase
4500 kilobase
3000 kilobase
5500 kilobase

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DNA Structure and Replication
Which histone(s) are associated with the linker DNA of a nucleosome?

Histone H4
Histones H2A and H2B
Histone H1
Histone H3

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

helix frequency
linking number
none of these
twisting number

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DNA Structure and Replication
The accepted hypothesis for DNA replication is

dispersive theory
conservative theory
semi-conservative theory
evolutionary theory

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DNA Structure and Replication
The 5' and 3' numbers are related to the

length of the DNA strand
the number of phosphates
the base pair rule
carbon number in sugar

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DNA Structure and Replication
Proteins which help to open the double helix for DNA synthesis are

DNA topoisomerase
ligase
DNA helicases
single stranded binding proteins

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