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DNA Structure and Replication

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

DNA ligase
polymerase
RNA ligase
gyrase

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DNA Structure and Replication
Which of the following enzyme adds complementary bases during replication?

Synthesase
Polymerase
Helicase
Replicase

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DNA Structure and Replication
The chromosomal DNA complexes with

two types of histone as H1 and H4
four types of histone as H1, H2A, H3 and H4
three types of histone as H1, H2A and H4
five types of histone as H1, H2A, H2B, H3 and H4

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

Polymerase I
none of these
Polymerase II
Polymerase III

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DNA Structure and Replication
Enzymes, responsible for unraveling short segments of DNA is

DNA ligase
helicase
DNA polymerase
primase

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DNA Structure and Replication
Which of the following is an active site on its single polypeptide chain for DNA Polymerase I?

3' → 5' exonuclease
5' → 3' polymerase
5' → 3' exonuclease
All of these

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