Sunday, November 6, 2011

muddiest point

my muddiest point is understanding antigens, i understand what they do but not how they do it.
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1 comment:

  1. OJNovember 7, 2011 at 8:12 PM

    A antigen is the shape of the cell membrane that can be identified and use antibodies wich matches with the antigens like a jigsaw puzzle and mark that pathogen for extermination or destruction _ OJ

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