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Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?
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If garbage is left on the street flies in microbes can arise from nothing to feed on it true or false
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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 βhard gel,β 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?
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Sketch a space filling model of a water molecule, show polarity by labeling positive and negatively...
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