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DNA Structure and Replication

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

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

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DNA Structure and Replication
Which will require a higher temperature to denature?

RNA with a high A-T content
DNA with a high A-T content
RNA with a high G-C content
DNA with a high G-C content

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DNA Structure and Replication
The role of primase is to

synthesize an RNA primer to begin the elongation process
cleave and unwinds short sections of DNA ahead of the replication fork
dismantle RNA primer
proofread base pairing

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

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

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DNA Structure and Replication
Telomeres are usually rich in which nucleotide?

Guanine
Adenine
Cytosine
Thymine

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DNA Structure and Replication
The RNA primers used to initiate replication in E. coli

result in Okazaki fragments on leading strand
are removed by helicase + ATP
are removed by Pol I
are joined together by DNA ligase

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