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DNA Structure and Replication

DNA Structure and Replication
The DNA is negatively super coiled, complexes to histone,

HSP-1
All of these
H-NS
HU

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

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

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DNA Structure and Replication
In a cesium chloride gradient, DNA labeled with 15N and centrifuged will form a band

above DNA containing 14N
below DNA containing 14N
with 14N-containing DNA
all of these

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DNA Structure and Replication
DNA can be sequenced by the

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

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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
Increases
Decreases
Can not be compared

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DNA Structure and Replication
Without telomerase, what would happen to the ends of chromosomes after each round of replication?

None of these
Chromosomes would become progressively shorter
Nothing would happen
Chromosomes would get longer

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MORE MCQ ON DNA Structure and Replication

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