A mouse is heterozygous at four different gene loci, with a genotype of AaBbCcDd. For each gene locus, the upper case letter represents the dominant allele and the lower case letter represents the recessive allele. These four allele pairs follow Mendel's principle of independent assortment. Knowing this, and assuming normal segregation of alleles during meiosis, complete the sentences with the correct terms.

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?