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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

linking number
helix frequency
twisting number
none of these

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DNA Structure and Replication
Each replication bubbles consists of

3 replication forks
1 replication forks
4 replication forks
2 replication forks

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

Polymerase
Synthesase
Helicase
Replicase

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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 nicks or gaps between Okazaki fragments are eventually sealed by

polymerase
RNA ligase
gyrase
DNA ligase

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DNA Structure and Replication
Which of the following in DNA replication and transcription are common?

synthesis in the 5'-3' direction
incorporation of deoxynucleotides
None of these
utilization the same enzyme

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