Final answer:
All present human species originated from Africa, as supported by genetic research indicating a common ancestry.
Step-by-step explanation:
According to the PBS film "Race: The Power of Illusion," all of the present human species originated from Africa. This assertion is strongly supported by genetic research, which has found that the genetic variance present in Africa is also found in populations around the rest of the world, indicating that modern humans evolved in Africa and then spread out to populate other parts of the globe. This phenomenon can be further highlighted by the fact that genomes of people outside of Africa show close ties to those of people within Africa.