The difference between an element and a compound is that an element is a substance made of same type of atoms, whereas a compound is made of different elements in definite proportions.
(July 2010). Molecular anthropology is a field of anthropology in which molecular analysis is used to determine evolutionary links between ancient and modern human populations, as well as between contemporary species.itochondrial DNA offers another advantage over autosomal DNA. There are generally 2 to 4 copies of each chromosome in each cell (1 to 2 from each parent chromosome). For mtDNA there can be dozens to hundreds in each cell.
Best Answer: Hey =]! For routine precipitation of nucleic acids, you need enough salt to neutralize the repulsion among the negatively charged strands of DNA, and enough alcohol to pull water molecules out of the DNA strand.In other words ethanol is used to dehydrate the DNA molecule, by creating a greater gradient.he DNA is dissolved in the mixture you have made with water, the sample, and probably detergent and meat tenderizer (maybe salt or baking soda, too). When you pour in the ice cold alcohol, the DNA comes out of solution and appears in the alcohol. ecolink Â· 8 years ago.