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  • xianranli
    Junior Member
    • Dec 2008
    • 2

    #1

    Non-random patterns of DNA polymorphisms---Paper on NAR

    Our paper about re-analysis public dataset from novel angle !!!

    The starting point are two simply questions:
    Question 1: For a chunk of DNA, if I tell you that the base content [A] = 20%, what is the base content [T]? How about [G] and [C]?
    > Are you kidding? Everybody knows this. And the answer is [T]=20%, [G]=30%, and [C]=30%.

    Question 2: If I unzip the DNA double helix and throw one strand away, I now have a single strand in my hand (which is the way for genome sequences deposited in GenBank). For this single strand , if I tell you that the base content [A] = 20%, what is the base content [T]? How about [G] and [C]?
    > Most answers are: because of the degrees of freedom for 4 nucleotides is 3, so you can't estimate it. But, hold your thought and find the clue from the attached graph

    By focusing on [A] on single strand, a lot of interesting things were discovered!

    Check out the whole story at http://nar.oxfordjournals.org/conten...ar.gkv197.full
    Attached Files
    Last edited by xianranli; 03-19-2015, 11:02 AM.

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