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Thread: Two Questions regarding Clovis Flints and Neanderthal

  1. #1 Two Questions regarding Clovis Flints and Neanderthal 
    Forum Freshman portcontrol7's Avatar
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    Pardon me if this is the wrong forum, I couldn't find an anthropology forum here. A couple basic questions.

    I understand that Clovis flints were often made of Obsidian rock, what I don't understand is how they made the flutes. What tools did they use for this, did they just grind a coarse stone repeatedly to etch the groove?

    On Neanderthal, I think I understand that their genome has been mapped and that we have none of their genes within us. Is this the case?

    Thanks in advance.


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    This site shows the steps involved in flintknapping. The flutes result from the way the flakes are chipped off the stone.

    http://bama.ua.edu/~alaarch/prehisto...ntknapping.htm

    It is not true that we have none of the Neanderthal genes. We are approximately 99.5 % identical. They haven't found any evidence of interbreeding, though.


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    Forum Freshman portcontrol7's Avatar
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    Thanks Harold, great link. I phrased my Neanderthal question poorly. From the mapping of the Neanderthal Genome we would only see how similar our genome is, correct? We would need individual DNA samples to confirm interbreeding, is this accurate?
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    Forum Cosmic Wizard paralith's Avatar
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    http://en.wikipedia.org/wiki/Neanderthal

    Go to the genome section.

    Long story short, it is still contested, and yes data from more individuals would be very helpful, but hypotheses can still be made based on one individual. Most studies have been done with mtDNA, but the best way to determine if interbreeding occurred is to find polymorphic alleles that are specific to one species and not the other, and look for evidence of some of those alleles spreading into the other population. I actually did some work on a study of interbreeding howler monkeys using this technique.
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    Forum Sophomore CShark's Avatar
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    Quote Originally Posted by paralith
    http://en.wikipedia.org/wiki/Neanderthal

    Go to the genome section.

    Long story short, it is still contested, and yes data from more individuals would be very helpful, but hypotheses can still be made based on one individual. Most studies have been done with mtDNA, but the best way to determine if interbreeding occurred is to find polymorphic alleles that are specific to one species and not the other, and look for evidence of some of those alleles spreading into the other population. I actually did some work on a study of interbreeding howler monkeys using this technique.
    Regarding interbreeding, I believe I recently read somewhere of a possible 'missing-link' find: part neandertal, part homosapien... try this link : http://news.nationalgeographic.com/n...nderthals.html
    Most articles mention strictly the genetic work being undertaken for this project.
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