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DNA Structure and Replication

DNA Structure and Replication
In an agarose gel, DNA is moving from

cathode to anode
A to B
left to right
anode to cathode

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DNA Structure and Replication
Which DNA polymerase removes RNA primers in DNA synthesis?

Polymerase II
none of these
Polymerase III
Polymerase I

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

Strongylocentrotus purpuratus
Arabidopsis thaliana
Xenopus laevis
Saccharomyces cerevisiae

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DNA Structure and Replication
What is the only common methylation in the DNA of eukaryotes?

Adenosine in GpA dinucleotides
Guanosine in ApGpA trinucleotides
None of these
Cytosine in CpG dinucleotides

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DNA Structure and Replication
DNA polymerases I also has

3'-5'exonuclease activity
5'-3' endonuclease activity
both (a) and (b)
5'-3' exonuclease activity

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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%?

Increases
Remains same
Decreases
Can not be compared

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