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DNA Structure and Replication

DNA Structure and Replication
Proteins involved in opening a replication bubble are

ligase
DNA helicases
single stranded binding proteins
DNA topoisomerase

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DNA Structure and Replication
Each replication bubbles consists of

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

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DNA Structure and Replication
Which polymerase is active in DNA repairing

Polymerase II
Polymerase III
none of these
Polymerase I

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DNA Structure and Replication
Which will require a higher temperature to denature?

DNA with a high A-T content
RNA with a high G-C content
DNA with a high G-C content
RNA with a high A-T content

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DNA Structure and Replication
During conventional transformation experiments E. coli cells and plasmid DNA interacts in an environment of

low temperature and Ca++
low temperature and Mg++
high temperature and Mg++
high temperature and Ca++

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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
twisting number
linking number
none of these

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MORE MCQ ON DNA Structure and Replication

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