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DNA Structure and Replication

DNA Structure and Replication
The enzyme responsible for breaking the hydrogen bonds, and thus separating the DNA strands during DNA synthesis is

helicase
strandase
none of these
DNA polymerase

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DNA Structure and Replication
When DNA polymerase is in contact with guanine in the parental strand, what does it add to the growing daughter strand?

Phosphate
Uracil
Guanine
Cytosine

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DNA Structure and Replication
The 5' and 3' numbers are related to the

the number of phosphates
the base pair rule
carbon number in sugar
length of the DNA strand

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

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

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DNA Structure and Replication
The most common liquid volumes in molecular biology are measured in

μl
1
nl
ml

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DNA Structure and Replication
Which of the following is an active site on its single polypeptide chain for DNA Polymerase I?

3' → 5' exonuclease
5' → 3' exonuclease
All of these
5' → 3' polymerase

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