Earth Timeline – Notes, References, and Sources


Earthshine's Timeline of a Pale Blue Dot - Notes, References, and Sources

Earthshine's Timeline of a Pale
Blue Dot


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"Nowadays, of course, the politically correct
way to group organisms, especially prokaryotes, is on a genetic basis,
i.e., by comparison of the nucleotide sequences of the small subunit ribosomal
RNA that is contained in all cellular organisms."


©
1997 Kenneth Todar University of Wisconsin-Madison Department of Bacteriology

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Last updated
April 20, 2001