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DNA Structure and Replication

DNA Structure and Replication
An RNA primer is synthesized by

DNA topoisomerase
ligase
DNA helicases
primase

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DNA Structure and Replication
Which polymerase is active in DNA repairing

Polymerase III
Polymerase II
Polymerase I
none of these

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DNA Structure and Replication
Which of the following would not contain DNA?

Glass crystals
Mold
Yeast
Bacteria

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DNA Structure and Replication
The nucleosome consists of histone

hexamer and 146 bp of DNA
octamer and 146 bp of DNA
None of these
tetramer and 146 bp of DNA

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DNA Structure and Replication
In DNA double helix, the two DNA chains are held together by

covalent bonds between the pair of bases
hydrogen bonds between the pair of bases
None of these
ionic bonds between the pair of bases

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DNA Structure and Replication
DNA helicase is used to

unwind the double helix
None of these
interact the double helix closely
break a phosphodiester bond in DNA strand

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