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DNA Structure and Replication

DNA Structure and Replication
Overwinding or overtightening of DNA during replication is caused and removed by

DNAa, gyrase
DNAb, DNA polymerase
DNAb, gyrase
Single stranded protein, DNAa

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DNA Structure and Replication
Each replication bubbles consists of

4 replication forks
2 replication forks
1 replication forks
3 replication forks

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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

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

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DNA Structure and Replication
After one replication in 15N, how many bands should be observed in a cesium chloride gradient?

Two
A smear
Three
One

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

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

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

H-NS
All of these
HSP-1
HU

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MORE MCQ ON DNA Structure and Replication

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