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DNA Structure and Replication

DNA Structure and Replication
How does ethidium bromide interact with DNA?

It intercalates between bases
It binds to phosphate
It binds to adenine
It does not interact

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

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

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DNA Structure and Replication
Replication in E. coli is initiated by the generation of short RNA primers using

RNA polymerase
primase
both (a) and (b)
reverse transcriptase

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

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

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DNA Structure and Replication
An enzyme that recognizes foreign DNA, and results in a cut in that DNA is called

reverse transcriptase
restriction endonuclease
helicase
transposase

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DNA Structure and Replication
Number of times the two DNA strands are interwined in circular DNA and is known as

twisting number
none of these
helix frequency
linking number

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