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

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

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DNA Structure and Replication
Nucleosome is

an hexamer of three histones without H1 protein
an hexamer of three histones with H1 protein
an octamer of four histones without H1 protein
an octamer of four histones with H1 protein

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