Your teacher is doing and long term experiment by having you and your classmates grow plants at home. you are testing the hypothesis that plant growth is affected by the amount of water a plant receives. all the data will be compiled in three weeks. why isn't it a good idea to use the 8 ounce measuring cup from your kitchen or the 12 inch ruler you have on your desk ?

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?