Although persons who are homozygous for the sickle cell trait normally do not live beyond childhood, persons who are heterozygous for the trait seem to have increased resistance to

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     Lyme disease.
      bubonic plague.
      Rocky mountain spotted fever.
asked May 16, 2012 in Microbiology by anonymous

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answered May 17, 2012 by Bioshare ~Top Expert~ (34,070 points)

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