sentence: Variation can only affect future generations if it is inherited.
sentences_after: Because of the work of Gregor Mendel, we know that much variation is inherited. Mendel's 'factors' are now called genes. Research has shown that 'almost every individual in a sexually reproducing species is genetically unique'.Futuyma D.J. 2005. 'Evolution'. Sinauer, Sunderland, Massachusetts.
concept_name: variation
headings: Evolution Darwin's theory Variation Inherited variation
categories: History of science