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DNA Structure and Replication

DNA Structure and Replication
Enzymes, responsible for unraveling short segments of DNA is

primase
DNA polymerase
DNA ligase
helicase

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DNA Structure and Replication
What is the approximate percentage of repetitive DNA sequences in human DNA?

10 to 20%
40 to 50%
20 to 30%
30 to 40%

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DNA Structure and Replication
Okazaki fragments occur during

synthesis
polymerase reaction
replication
transformation

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DNA Structure and Replication
In sperm heads, DNA is particularly highly condensed and the histones are replaced with small basic protein called

All of these
purines
pyrimidines
protamines

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DNA Structure and Replication
Which of the following are short nucleotides strands made by DNA polymerase working in the opposite direction of the replication fork?

Lagging strand
Primers
Leading strands
Okazaki fragments

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

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

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