FrÃ¥gan om var grÃ¤nsen fÃ¶r vad som Ã¤r en mÃ¤nniska gÃ¥r blir allt svÃ¥rare att besvara.
Scientists have begun putting genes from human beings into food crops in a dramatic extension of genetic modification.
Ironiskt nog ska genen anvÃ¤ndas fÃ¶r att bryta ned kemikalier som hamnat i miljÃ¶n tack vare mÃ¤nniskan:
In the first modification of its kind, Japanese researchers have inserted a gene from the human liver into rice to enable it to digest pesticides and industrial chemicals. The gene makes an enzyme, code-named CPY2B6, which is particularly good at breaking down harmful chemicals in the body.