The sum of all the alleles in a population is called the:

1. Population genetics needs a term for all the genetic variation present. 2. The gene pool is the sum of all the alleles in a population. 3. It is the pool that evolutionary forces act on. 4. A genome or a locus describes one individual or one site, not the population. _Source: OpenStax Biology 2e (CC BY 4.0), Ch 19 'The Evolution of Populations', sections 19.1-19.3_