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Remove Maupertuis quote which discusses natural selection but not common descent |
m →RNA world: "origin" of life → origin of life, as quotation marks are not appropriate here. The subject really i̲s̲ the origin of life; the term is not meant ironically or sarcastically. |
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In 2008, biologist [[T. Ryan Gregory]] noted that:
<blockquote>No reliable observation has ever been found to contradict the general notion of common descent. It should come as no surprise, then, that the scientific community at large has accepted evolutionary descent as a historical reality since
==Evidence==
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===RNA world===
{{main|RNA world}}
The possibility is mentioned, above, that all living organisms may be descended from an original single-celled organism with a [[DNA]] [[genome]], and that this implies a single origin for life. Although such a universal common ancestor may have existed, such a complex entity is unlikely to have arisen spontaneously from non-life and thus a cell with a DNA genome cannot reasonably be regarded as the
==See also==
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