If light is absorbed by a substance, what can be assumed about the frequencies of the light and the material? The frequency of light matches the natural frequency of the molecules in the material.
The frequency of the light is higher than the natural frequency of the molecules in the material.
The frequency of the light is lower than the natural frequency of the molecules in the material.
The frequency of the light is altered by the natural frequency of the molecules in the material.
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Assume that you are interested in separating short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range. you have two recipes for making your polyacrylamide gels: one recipe uses 1.5 percent agarose and would be considered a “hard gel,” while the other uses 0.5 percent agarose and would be considered a loose gel. which gel should you use to separate the short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range?