LUCA - the Last Universal Common Ancestor
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27-07-2016, 10:54 AM
LUCA - the Last Universal Common Ancestor
A surprisingly specific genetic portrait of the ancestor of all living things has been generated by scientists who say that the likeness sheds considerable light on the mystery of how life first emerged on Earth.

http://www.nytimes.com/2016/07/26/scienc....html?_r=0

But there's still controversy about the origins of life. Did it develop near deep sea vents or on the planet's surface?

The invisible and the non-existent look very much alike
Excreta Tauri Sapientam Fulgeat (The excrement of the bull causes wisdom to flee)
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27-07-2016, 11:09 AM
RE: LUCA - the Last Universal Common Ancestor
(27-07-2016 10:54 AM)Silly Deity Wrote:  A surprisingly specific genetic portrait of the ancestor of all living things has been generated by scientists who say that the likeness sheds considerable light on the mystery of how life first emerged on Earth.

http://www.nytimes.com/2016/07/26/scienc....html?_r=0

But there's still controversy about the origins of life. Did it develop near deep sea vents or on the planet's surface?
I'm a shoreline fan. Much of the coast of the world's continents have shallows that could have been vats of chemicals just stewing away in the sunshine.
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27-07-2016, 11:32 AM
RE: LUCA - the Last Universal Common Ancestor
(27-07-2016 10:54 AM)Silly Deity Wrote:  A surprisingly specific genetic portrait of the ancestor of all living things has been generated by scientists who say that the likeness sheds considerable light on the mystery of how life first emerged on Earth.

http://www.nytimes.com/2016/07/26/scienc....html?_r=0

But there's still controversy about the origins of life. Did it develop near deep sea vents or on the planet's surface?

LUCA would seem to be a confirmation that there is only one tree of life on earth. Were there other trees that were out-competed by LUCA and progeny? Is that something that can be known?

We have to remember that what we observe is not nature herself, but nature exposed to our method of questioning ~ Werner Heisenberg
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27-07-2016, 11:40 AM
RE: LUCA - the Last Universal Common Ancestor
Does LUCA explain the bizarre diversity of the Pre-Cambrian Era? After that everything follows a single body plan, for the most part. Prior to that any damn body plan had a representative.
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27-07-2016, 12:21 PM
RE: LUCA - the Last Universal Common Ancestor
Life on Earth exists because the mice paid for it to be that way.......


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Slartibartfast
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27-07-2016, 12:43 PM
RE: LUCA - the Last Universal Common Ancestor
(27-07-2016 12:21 PM)onlinebiker Wrote:  Life on Earth exists because the mice paid for it to be that way.......


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Slartibartfast

I'd wish somebody had run some inspectors through the place before we signed off on it.
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28-07-2016, 04:16 PM
RE: LUCA - the Last Universal Common Ancestor
Luca was a ho Smile

Insanity - doing the same thing over and over again and expecting different results
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