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  1. A

    [_ Old Earth _] Evolution is for the 'Birds'!

    How many of the same post are you going to have to make before you realize that your premise is based on one, misplaced argument. Instinct, whether you like it or not, can be connected to certain areas of the brain (different instincts connected to different areas depending on species). As a...
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    [_ Old Earth _] The Amazing Discovery of DNA

    Well, I'm an "evolutionist", for whatever that is worth. I'm also not a proponent of Eugenics. The whole concept of Eugenics is ridiculous because it is based on some arbitrary definition of "the fittest". Being "fit" is entirely dependent on what environment you occupy, and as the...
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    [_ Old Earth _] The Amazing Discovery of DNA

    I don't know why I bother. I'm not asking you to accept that abiogenesis led to an RNA world that eventually evolved into bacteria that had proteins which eventually evolved to nitrogenase, although that is what I believe. I'm asking you to discuss the subject of nitrogenase EVOLUTION. I have...
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    [_ Old Earth _] The Amazing Discovery of DNA

    We are talking about evolution and not abiogenesis. Your question used the evolution of nitrogen fixation as a problem for the TOE. I have shown you 1) pre-existing conditions that would provide a selective advantage for nitrogen fixing mutants, 2) the high conservation of nif genes between...
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    [_ Old Earth _] The Amazing Discovery of DNA

    Sigh.... Once again, to reiterate, the bacteria are not trying to fix nitrogen. A mutation (or likely several) causes one existing protein to change enough that it is able to fix nitrogen. This gives it a massive selective advantage (which you agree), and would ultimately cause that bacteria...
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    [_ Old Earth _] The Amazing Discovery of DNA

    I'm going to address your points one at a time to avoid sitting down for hours researching my post. So, nitrogen fixation. Nitrogen that is available for use (aka. fixed nitrogen) is required for all life. Prior to the radiation of diazotrophs (organisms that fix nitrogen), all life relied...
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    [_ Old Earth _] The Amazing Discovery of DNA

    One doesn't have to go to University to learn (just to get certification saying they have learned...) There are plenty of free lectures online. Here is a good site with a lot of free content: Web Hosting Services, Reseller Hosting, VPS Hosting, and Dedicated Servers by HostGator...
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    [_ Old Earth _] The Amazing Discovery of DNA

    The title of the degree was just "biology" but all of my work was in the microbiology, and specifically environmental microbiology area.
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    [_ Old Earth _] The Amazing Discovery of DNA

    I wasn't accusing you of saying that - I was addressing the original post. I certainly said that as well, but my statement was not a flat out lie. No argument on the first part, and we'll wait and see on the second part. The beauty of science is that it is constantly self correcting. If a...
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    [_ Old Earth _] The Amazing Discovery of DNA

    Ah okay, I think I understand your question now. An interesting explanation I've heard for changes in mutation rates is the transposon explanation (this is from a chapter of Survival of the Sickest, by Sharon Moalem, an excellent read with fairly simple prose). Transposons or "jumping genes"...
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    [_ Old Earth _] The Amazing Discovery of DNA

    I don't really understand what you're trying to get at here. The C explosion certainly was rapid by evolutionary standpoints (although still over many, many millennia). Life radiated explosively and has stayed fairly constant since then (with only further adaptations on the original groupings...
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    [_ Old Earth _] The Amazing Discovery of DNA

    Yea, this forum is really odd with links. Here is the abstract. Lamprey Dlx genes and early vertebrate evolution Adam H. Neidert, Vikrant Virupannavar, Gillian W. Hooker, and James A. Langeland* Gnathostome vertebrates have multiple members of the Dlx family of transcription factors that are...
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    [_ Old Earth _] The Amazing Discovery of DNA

    Okay, first, you asked a question about one enzyme co-opting to serve another function (which is specific), and then jumped WAY back to the radiation of all life. Your question about lamprey to gnathostome development is also very broad. To properly understand how such changes happen, one has...
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    [_ Old Earth _] The Amazing Discovery of DNA

    Jason, I'm not going to get into a debate about the Cambrian explosion based on some broad, sweeping, inflammatory statements. Your question seems to be "too much change occurred for it to be possible to occur, explain". You provided a specific question to which I provided a specific response...
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    [_ Old Earth _] The Amazing Discovery of DNA

    The Evolutionary Accessibility of New Enzyme Functions: A Case Study from the Biotin Pathway Ann K. Gauger and Douglas D. Axe* Biologic Institute, Redmond, WA, USA Maybe the page I found it on had it wrong. Regardless, does that answer suffice?
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    [_ Old Earth _] The Amazing Discovery of DNA

    Well, I must confess that I don't really remember what I was taught in highschool. I certainly was taught PE in University. I could see gradualism being taught in the same manner as the Bohr Model is taught. Not completely correct, but gets some general ideas across for students to...
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    [_ Old Earth _] The Amazing Discovery of DNA

    I'm a little confused by your argument (and also am new to the thread), so if possible, could you present your arguments piecemeal in a new post? Thanks. As for the gradualism - I'm personally a advocate of Gould's punctuated equilibrium (or at least a mixture of PE and gradualism)...
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    [_ Old Earth _] The Amazing Discovery of DNA

    Certainly there is that possibility, but I was addressing the assertion that the majority of the community thinks in a certain way. Also, the OP said "Crick concluded...." which seems like a powerful statement until you think about the fact that a) he conducted the majority of his research 50...
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    [_ Old Earth _] The Amazing Discovery of DNA

    This thread is mind boggling. No matter what your personal beliefs are, I can assure you that a designer is not considered to be a prerequisite for life from the majority of the scientific community. Having "a book" somewhere that you are not sure of its name generally is not considered solid...
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    Why some people sneeze in bright sunlight

    I remember being told that sneezing in bright light is an (drumroll...) evolutionary response developed from living in caves. You would stay in the dark for periods of time, collecting mold, bacteria, and other nasty stuff in your sinuses. Stepping outside signified that you were outdoors and...
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