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.
DNA extraction is one of the most modern of the biological sciences. It is used to diagnose many medical conditions and can also be used for genetic engineering of both plants and animals. DNA extraction can also be used to gather evidence in a crime investigation. (Byelikova_Oksana/iStock/Getty Images).