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DNA Structure and Replication

DNA Structure and Replication
A cesium chloride will separate DNA molecules by

adhesion
density
resorption
absorption

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DNA Structure and Replication
The nicks or gaps between Okazaki fragments are eventually sealed by

RNA ligase
polymerase
gyrase
DNA ligase

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

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

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DNA Structure and Replication
Which of the following in DNA replication and transcription are common?

synthesis in the 5'-3' direction
utilization the same enzyme
None of these
incorporation of deoxynucleotides

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DNA Structure and Replication
During conventional transformation experiments E. coli cells and plasmid DNA interacts in an environment of

low temperature and Mg++
high temperature and Mg++
high temperature and Ca++
low temperature and Ca++

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

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

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