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DNA Structure and Replication

DNA Structure and Replication
First evident that DNA is genetic material comes from the experiment of Griffith is

transformation
replication
transduction
translation

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DNA Structure and Replication
The melting of 40-45 bp at the oriC site of E. coli requires

DNA + ATP + HU + DNAb + DNAa + Pol III holoenzyme
DNA + ATP + HU + DNAb
DNA + ATP + HU
DNA+ ATP + HU + DNAb + DNAa

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DNA Structure and Replication
DNA segments capable of moving from one place in the genome to another is known as

transposons
moving elements
introns
retrovirus

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DNA Structure and Replication
DNA helicase is used to

unwind the double helix
None of these
break a phosphodiester bond in DNA strand
interact the double helix closely

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DNA Structure and Replication
What bands will be observed in a cesium chloride gradient after two rounds of replication?

One light, one medium and one heavy band
One medium band
One medium and one heavy band
One light and one medium band

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

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

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