Acomputer model can simulate the aspects of viral reproduction quite well; however, microscope observation of actual viral reproduction can improve understanding because actual
a.) may reveal greater unknown complexities.
b.) are easier than a computer model to view.
c.) are the same each time.
d.) may provide reproduction events in sequence.

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?