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DNA Structure and Replication

DNA Structure and Replication
What is the exact name of the classical Watson-Crick double helix DNA?

X-DNA
B-DNA
Z-DNA
A-DNA

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DNA Structure and Replication
In the study of one experiment it was found that the value of Tm for DNA is = 40° C. If the cell has 20% GC at the above Tm, then what will be value of 'Tm' if the GC% increases to 60%?

Remains same
Decreases
Increases
Can not be compared

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

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

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

semi-conservative replication
dispersive replication
Cri du Chat
conservative replication

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

DNA topoisomerase
ligase
DNA helicases
single stranded binding proteins

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DNA Structure and Replication
The accepted hypothesis for DNA replication is

evolutionary theory
conservative theory
dispersive theory
semi-conservative theory

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