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Discussion and Debate
Discussion and Debate
Physical & Life Sciences
Creation & Evolution
Meet LUCA, the Last Universal Common Ancestor. Still Alive!
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<blockquote data-quote="mark kennedy" data-source="post: 70021926" data-attributes="member: 29337"><p>I thought it was comparative genomics, it was really just conjecture. This is what threw me:</p><p></p><p style="margin-left: 20px">The 355 genes pointed quite precisely to an organism that lived in the conditions found in deep sea vents, the gassy, metal-laden, intensely hot plumes caused by seawater interacting with magma erupting through the ocean floor.</p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px">Deep sea vents are surrounded by exotic life-forms and, with their extreme chemistry, have long seemed places where life might have originated. The 355 genes ascribable to Luca include some that metabolize hydrogen as a source of energy as well as a gene for an enzyme called reverse gyrase, found only in microbes that live at extremely high temperatures. (Meet Luca, the Ancestor of All Living Things)</p> <p style="margin-left: 20px"></p><p>This was all just speculation, yea I misread it but now I'm just disappointed. Thought they actually had something substantive here.</p><p></p><p>I was thinking that this could be the basis for something like what Richard Dawkins did in the Ancestors Tale. Starting with the last universal common ancestor and looking at what would have had to happen. If you could actually compare the genomes of these extremaphiles to other bacteria there might be something tangible. </p><p></p><p>Turns out it was nothing, my bad. </p><p></p><p>Have a nice day <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p>Mark</p></blockquote><p></p>
[QUOTE="mark kennedy, post: 70021926, member: 29337"] I thought it was comparative genomics, it was really just conjecture. This is what threw me: [INDENT]The 355 genes pointed quite precisely to an organism that lived in the conditions found in deep sea vents, the gassy, metal-laden, intensely hot plumes caused by seawater interacting with magma erupting through the ocean floor. Deep sea vents are surrounded by exotic life-forms and, with their extreme chemistry, have long seemed places where life might have originated. The 355 genes ascribable to Luca include some that metabolize hydrogen as a source of energy as well as a gene for an enzyme called reverse gyrase, found only in microbes that live at extremely high temperatures. (Meet Luca, the Ancestor of All Living Things) [/INDENT] This was all just speculation, yea I misread it but now I'm just disappointed. Thought they actually had something substantive here. I was thinking that this could be the basis for something like what Richard Dawkins did in the Ancestors Tale. Starting with the last universal common ancestor and looking at what would have had to happen. If you could actually compare the genomes of these extremaphiles to other bacteria there might be something tangible. Turns out it was nothing, my bad. Have a nice day :) Mark [/QUOTE]
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Meet LUCA, the Last Universal Common Ancestor. Still Alive!
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