the branch of genetics concerned with the hereditary makeup of populations.
the study of changes in gene frequencies in population of organisms and the effects of such changes on evolution and adaptation.
population genetics n.
The branch of genetics that deals with the genetic makeup of populations.
The scientific study of the inheritance and prevalence of genes in populations, usually using statistical analysis.
The study of the genetic composition of populations in order to understand the evolutionary forces that select for a particular gene.
noun, Physics. 1. a condition of matter in which more electrons are in a high energy state than in a lower energy state, as is required for the operation of a laser. population inversion The condition of having enough excited or high-energy states distributed in a material that a chain-reaction of stimulated emission can occur. […]
noun, Statistics. 1. a quantity or statistical measure that, for a given population, is fixed and that is used as the value of a variable in some general distribution or frequency function to make it descriptive of that population: The mean and variance of a population are population parameters.
noun, Ecology. 1. the force exerted by a growing population upon its environment, resulting in dispersal or reduction of the population.
noun, Sociology. 1. a graph showing the distribution of a population by sex, age, etc. noun 1. a pyramid-shaped diagram illustrating the age distribution of a population: the youngest are represented by a rectangle at the base, the oldest by one at the apex