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View Diary: Gaia Hypothesis 101 (66 comments)

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  •  asdf (0+ / 0-)
    Lynn Margulis, late ex wife of Carl Sagan, who first proposed that eukaryote cells originated from symbiosis -- ie organelles were actually different living things from the cells they lived inside.
    She was not the first to propose this.
    •  Twas Russian botanist Konstantin Mereschkowski (0+ / 0-)

      Sorry about that.

      Mereschkowski first published the theory in 1910 while Margulis reinforced and advanced the idea thanks to DNA observations which couldn't be done earlier.

      http://en.wikipedia.org/...

      Got a bit too eager in my typing.

      •  Correct (0+ / 0-)

        I think Dr. Margulis was the first to try to prove it with direct observations of the internal structures of cells. It was only proven when it was determined that some cell organelles had different DNA from the nuclear DNA.

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