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DNA Structure and Replication

DNA Structure and Replication
DNA can be sequenced by the

both (a) and (b)
chemical method
chain termination procedure
physical method

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DNA Structure and Replication
What is the range of melting point temperatures (Tm) for most DNA molecules?

80 to l00°C
60 to 80°C
70 to 90°C
50 to 60°C

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DNA Structure and Replication
Which of the following species lack a 'classical' histone H1?

Arabidopsis thaliana
Xenopus laevis
Strongylocentrotus purpuratus
Saccharomyces cerevisiae

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DNA Structure and Replication
DNA replication takes place in which direction?

5 'to 3'
Randomly
Vary from organism to organism
3' to 5'

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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%?

Can not be compared
Increases
Remains same
Decreases

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DNA Structure and Replication
The packing ratio of nucleosomes is about

9
8
7
6

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