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DNA Structure and Replication

DNA Structure and Replication
Reverse transcriptase produces

RNA from DNA
RNA from RNA
DNA from peptides
DNA from RNA

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DNA Structure and Replication
DNA polymerases I also has

5'-3' exonuclease activity
5'-3' endonuclease activity
both (a) and (b)
3'-5'exonuclease activity

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

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

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

A smear
Two
One
Three

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DNA Structure and Replication
30 nm wide helix with five or six nucleosomes per helix is known as

none of these
kinoplast
halonoid
solenoid

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

bZIP
zinc finger
TFIID
helix-turn-helix

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