Can geographical isolation lead to speciation. 3 Although punctuated equilibrium generally applies to sexually reproducing organisms 30 some biologists have applied the model to non-sexual species like viruses. Speciation Biological Principles 37 Full PDFs related to this paper. . Iii Gene hybridization is a term used to describe the process of combining two or more genes. The term Phycosphere used for the first time in 1972 Bell and Mitchell 1972 defined as a zone that may exist extending outward from an algal cell or colony for an undefined distance in which the bacterial growth is stimulated by the extracellular products of the alga is used sparingly sinceStudies from our laboratory Cho et al 2015b Kim et al 2014a Lee et al. Due to the complexity of organisms any two completely isolated populations will eventually evolve genetic incompatibilities through neutral processes as in the Bateson-Dobzhansky-Muller model even if both population...