Meaning of orthogenesis
Pronunciation: (ôr"thu-jen'u-sis), [key]
- Also calledorthoselection.evolution of a species proceeding by continuous structural changes in a single lineage without presenting a branching pattern of descent.
- a theory that the evolution of a species in a continuous, nonbranching manner is due to a predetermined series of alterations intrinsic to the species and not subject to natural selection.
- a hypothetical parallelism between the stages through which every culture necessarily passes, in spite of secondary conditioning factors.