The sequence of these stretches of DNA varies quite a bit from organism to organism, suggesting independent origins. (sciencemag.org)
From the evidence available to us, especially the East Syrian and Indian traditions, it is reasonable to believe that the Indian church has an independent origin, independent of Persian Christianity, in the apostolic activity of St. Thomas in the first century. (religion-online.org)
When Tomer compared the worm's cells with those in a vertebrate cerebral cortex, he found they were too similar to be of independent origin. (discovermagazine.com)