By 1799 the number of Martha Washington's dower slaves had grown to 153; George Washington owned 124 people, and at least a dozen Washington-owned slaves intermarried.
Hund's rule of maximum multiplicity is a rule based on observation of atomic spectra, which is used to predict the ground state of an atom or molecule with one or more open electronic shells.
Parsimony (Molecular Biology). Parsimony is one of the principles of phylogenetic tree reconstruction in which the phylogeny of a group of species or genes is inferred to be the branching pattern that requires the smallest number of evolutionary changes (1).he merit of using the parsimony principle is that we can infer the amino acid or nucleotide sequences of all the intermediate stages in the continuous lineage between the ancestor and the present species. The intermediate stages may be trustworthy, however, only when closely-related genes are compared.