Lactose intolerance

Discussion in 'Biology & Genetics' started by birch, Nov 24, 2017.

  1. birch Valued Senior Member

    Messages:
    4,132


    i'm one of those asians that are not lactose intolerant but i do have some family members that are.

    what does this mean as far as ancestry or why i'm lactose tolerant and others biologically related to me are not?
     

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