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DNA Structure and Replication

DNA Structure and Replication
Messelsen and Stahl model of replication was called

semi-conservative replication
conservative replication
Cri du Chat
dispersive replication

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DNA Structure and Replication
Okazaki fragments occur during

synthesis
transformation
replication
polymerase reaction

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

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

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DNA Structure and Replication
What does ligase do during replication of DNA?

Makes copies of mRNA from DNA
Digests mRNA when it is no longer needed
Joins nicks in DNA strands
Synthesizes the lagging strand

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DNA Structure and Replication
The replication of a linear DNA molecule in a eukaryotic chromosome creates a problem which is reported to be sorted out by

None of these
shortening of the double stranded replicated portion
using RNA as a template
using enzyme called telomerase

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

Helicase
Polymerase
Synthesase
Replicase

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