Endosymbiosis – The Appearance of the Eukaryotes
that attempts to explain the origins of eukaryotic ..
The endosymbiotic theory was advanced and substantiated with microbiological evidence by in a 1967 paper, The Origin of Mitosing Eukaryotic Cells. In her 1981 work Symbiosis in Cell Evolution she argued that eukaryotic cells originated as communities of interacting entities, including endosymbiotic that developed into eukaryotic and . This last idea has not received much acceptance, because flagella lack DNA and do not show ultrastructural similarities to prokaryotes. See also .
elements of the evolution of eukaryotic cells
It is also believed that these endosymbionts transferred some of their own DNA to the host cell's nucleus during the evolutionary transition from a symbiotic community to an instituted eukaryotic cell. This hypothesis is thought to be possible because it is known today from scientific observation that transfer of DNA occurs between prokaryotic species, even if they are not closely related. Prokaryotes can take up DNA from their surroundings and have a limited ability to incorporate it into their own genome.
Explain the endosymbiotic theory for the evolution of …
The endosymbiotic hypothesis was popularized by . In her 1981 work she argued that eukaryotic cells originated as communities of interacting entities, including endosymbiotic that developed into eukaryotic and . This last idea has not received much acceptance, since flagella lack DNA and do not show ultrastrucural similarities to prokaryotes. According to Margulis and Sagan (1996), "Life did not take over the globe by combat, but by networking" (i.e., by cooperation), and Darwin's notion of evolution driven by competition is incomplete. However, others have argued that endosymbiosis involves rather than mutualism.