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DNA Structure and Replication

DNA Structure and Replication
Which of the following is not a structural motif in DNA binding proteins?

helix-turn-helix
zinc finger
TFIID
bZIP

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

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

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DNA Structure and Replication
Klenow fragment without free nucleotides exhibits

no activity
nickase activity
endonuclease activity
exonuclease activity

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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?

Uracil
Guanine
Phosphate
Cytosine

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DNA Structure and Replication
What does ligase do during replication of DNA?

Makes copies of mRNA from DNA
Digests mRNA when it is no longer needed
Synthesizes the lagging strand
Joins nicks in DNA strands

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

nl
ml
μl
1

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