I want to know the answer to the following question:
What doesn't the genetic variation within the human species support?
All the background I'm provided with is that "Upon examining the data from the genome mapping, Venter realized that although the genetic variation within the human species is on the order of 1–3% (instead of the previously assumed 1%), the types of variations do not support notion of genetically defined races.". Is that enough to answer the question?
Answer: yes