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DNA Structure and Replication

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

5500 kilobase
3000 kilobase
4500 kilobase
6500 kilobase

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DNA Structure and Replication
First evident that DNA is genetic material comes from the experiment of Griffith is

translation
transduction
transformation
replication

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DNA Structure and Replication
Which polymerase is active in DNA repairing

Polymerase II
Polymerase III
Polymerase I
none of these

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DNA Structure and Replication
DNA polymerases I also has

5'-3' endonuclease activity
3'-5'exonuclease activity
both (a) and (b)
5'-3' exonuclease activity

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DNA Structure and Replication
The site on a bacterial chromosome that marks the initiation point for chromosome replication is called

an initiation codon
Pro
a promoter
Ori

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DNA Structure and Replication
Which enzyme catalyzes the elongation of DNA molecules?

Helicase
DNA polymerase
Primase
DNA ligase

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