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Thread: Scientists May Have Found How Life Began

  1. #11
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    Re: Scientists May Have Found How Life Began

    Wow, the troglodytes are out in full force today, attacking even the POSSIBILITY that scientists may have discovered something.
    Are you coming to bed?
    I can't. This is important.
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    Re: Scientists May Have Found How Life Began

    Quote Originally Posted by Kandahar View Post
    Wow, the troglodytes are out in full force today, attacking even the POSSIBILITY that scientists may have discovered something.
    Those ****ers couldn't discover their dicks with a map.
    Last edited by American; 05-15-09 at 11:20 PM.
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    Re: Scientists May Have Found How Life Began

    Quote Originally Posted by American View Post
    But I thought Darwin determined.....I thought it was all evolution.
    What point are you trying to make?

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    Re: Scientists May Have Found How Life Began

    Quote Originally Posted by American View Post
    Those ****ers could discover their dicks with a map.
    Grammar fail makes your attempt at an insult backfire.
    "An error does not become truth by reason of multiplied propagation, nor does truth become error because nobody sees it." - Gandhi

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    Re: Scientists May Have Found How Life Began

    Quote Originally Posted by EgoffTib View Post
    Grammar fail makes your attempt at an insult backfire.
    Thanks.
    "He who does not think himself worth saving from poverty and ignorance by his own efforts, will hardly be thought worth the efforts of anybody else." -- Frederick Douglass, Self-Made Men (1872)
    "Fly-over" country voted, and The Donald is now POTUS.

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    Re: Scientists May Have Found How Life Began

    Quote Originally Posted by American View Post
    Thanks.
    What does evolution have to do with abiogenesis?

    Why are you angry scientists may have come up with a theory that can help explain how life may have begun? It has little to do with creation as God may have put exactly what they say in motion. They are also not touting it as any kind of fact, just a hypothesis. So I don't understand the hostility for an honestly exciting theory.
    Quote Originally Posted by Moot View Post
    Benjii likes the protests...he'd be largely irrelevant without them. So he needs to speak where he knows there will be protests against him and that makes him responsible for the protests.
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    Norville Rogers
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    Re: Scientists May Have Found How Life Began

    Quote Originally Posted by American View Post
    But I thought Darwin determined.....I thought it was all evolution.
    Abiogenesis is a completely separate theory from evolution.

    And btw, you should read the whole sentence

    But DNA is too sophisticated to have popped up in an instant, and one avenue of thought says its single-stranded cousin, ribonucleic acid, or RNA, came first.
    DNA came from RNA, which came from simpler organic molecules, which came from simpler inorganic molecules, which are comprised of heavy elements, which form from hydrogen and helium in stars, which did pop up in an instant when the universe cooled down after the Big Bang sufficiently for subatomic particles, and later atoms to form

    Prior to this study, researchers had been unable to get RNA to self-organize from simpler components in conditions that are plausible for early earth. Now they have

    Last edited by Kernel Sanders; 05-15-09 at 11:46 PM.

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    Re: Scientists May Have Found How Life Began

    Quote Originally Posted by Kernel Sanders View Post
    Prior to this study, researchers had been unable to get RNA to self-organize from simpler components. Now they have, in conditions that are plausible for early earth.
    Could you point out where they said this was done. As far as I could tell it said they think it is possible.

    I think they said it was plausible, not that they did it. Am I wrong?
    Last edited by Black Dog; 05-15-09 at 11:36 PM.
    Quote Originally Posted by Moot View Post
    Benjii likes the protests...he'd be largely irrelevant without them. So he needs to speak where he knows there will be protests against him and that makes him responsible for the protests.
    Quote Originally Posted by Absentglare View Post
    You can successfully wipe your ass with toilet paper, that doesn't mean that you should.

  9. #19
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    Re: Scientists May Have Found How Life Began

    This is crazy.

    HAVE they solved how life begun, or not? How plausible is this theory? How sure are they that this is it?

  10. #20
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    Re: Scientists May Have Found How Life Began

    Quote Originally Posted by DarkWizard12 View Post
    So, wait, did the scientists actually find out how life MAY have begun, with an experiment and all, or is this just speculation? I don't see any sort of definite answer that life, at least COULD have, begun with RNA first.
    I suggest you read the Ars Technica article about this topic

    Source [Ars Technica | Origin of life: building an RNA world from simple chemicals]

    Studying the origin of life is a real challenge. Any actual evidence of the specific chemicals involved has long since been destroyed, leaving researchers with a big gap to bridge between the chemistry of the early earth and the molecules that appear to be fundamental to life itself. Recent years have seen a number of discoveries about DNA's close chemical relative, RNA, that suggest it played a key role in early protolife, leading to a proposal that life started out in an RNA world. One of the problems with this concept, however, was the fact that chemists hadn't come up with a way to synthesize the basic building blocks of RNA using the chemicals that were likely to be present in the early earth. Now, by taking a systems chemistry approach, a team of researchers at the University of Manchester have neatly cleared that hurdle.

    On the biology side of things, support for an RNA world has built steadily in the last couple of decades, as discoveries have shown that RNA, in addition to carrying genetic information, can catalyze a variety of chemical reactions and undergo a form of chemical evolution when placed under a selective pressure. Remnants of the RNA world also appear to be central to modern life. Key molecules such as ATP and NADH are derivatives of RNA components, and RNA appears to catalyze a key step in the production of proteins.

    But, so far, chemistry had come up a bit short. An RNA molecule is basically a polymer of individual units comprised of a ring-shaped base molecule, a sugar, and a phosphate. Chemists had figured out different ways that simple organic chemicals that were likely to be present in the early earth could form the base and sugar (phosphates are abundant). But, so far, they'd failed to chemically link them together in a functional unit.
    That's the background of the recent study. There are infinitely many ways in which DNA may have eventually come about, which are more or less likely to have happened in early Earth. RNA can be artificially generated relatively easily in a lab, but this doesn't explain how it happened naturally, because the conditions are optimized for production quality, production rate etc rather than for being a good model of a mud puddle. This study demonstrated that RNA can be generated under realistic conditions, which strengthens the argument that RNA likely arose from simpler organic molecules, and more complex DNA molecules arose from RNA molecules, which this team demonstrated could have arisen in nature.

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