Definition: Change in allele frequencies, including fixation and loss, by chance. Related Vocabulary: AlleleSymposia: Ancient DNA and Human EvolutionAwareness of Death and Personal Mortality: Implications for AnthropogenyCellular and Molecular Explorations of AnthropogenyComparative Anthropogeny: Exploring The Human-Ape ParadoxExploring the Origins of Today's HumansImpact of Infectious Disease on Humans & Our OriginsImplications of Anthropogeny for Medicine and Health