Doesn't really work you see. You only had Eva and Adam. That's two people and we have three distinct races, i.e. Caucasians, Africans and Asians. No matter how you long Adam and Eve mate, they can only produce the offspring either as Race A, Race B or Hybrid Race AB. Neither of the above stated races are hybrids of two others. And if you consider the "third race" (sounds like Third Reich really) developing due to the environment, that's your proof of evolution.

If we assume that they were both heterozygous monohybrits, it should look something like this here:




NB: I tried putting that down as politically correctly as I could. If you do manage to get upset about it, sorry, wasn't my intention.