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.
For example, if a hair is left at the scene of the crime, nuclear DNA can only be analyzed if the root is intact. However, mitochondrial DNA can be analyzed from anywhere along the hair follicle, including the shaft. Bones and teeth also contain mitochondrial DNA and can be used in mitochondrial DNA analysis. There are several disadvantages of using mitochondrial DNA typing in forensics in lieu of nuclear DNA markers.