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DNA Structure and Replication

DNA Structure and Replication
In sperm heads, DNA is particularly highly condensed and the histones are replaced with small basic protein called

pyrimidines
protamines
purines
All of these

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DNA Structure and Replication
The nicks or gaps between Okazaki fragments are eventually sealed by

DNA ligase
RNA ligase
gyrase
polymerase

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

4500 kilobase
3000 kilobase
5500 kilobase
6500 kilobase

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

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

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DNA Structure and Replication
Which DNA polymerase removes RNA primers in DNA synthesis?

none of these
Polymerase III
Polymerase II
Polymerase I

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DNA Structure and Replication
The accepted hypothesis for DNA replication is

semi-conservative theory
dispersive theory
conservative theory
evolutionary theory

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