In the United States of America, use of DNA samples in criminal investigation and of genetic ancestry tests in 'personalised medicine', 'pharmacogenetics' and for personal consumption has grown exponentially. Moreover, use of such technologies is visible in the public sphere. In South Africa, DNA sampling for ancestry testing is the most publicly visible application of these technologies. This work has shifted constructions of 'KhoiSan' communities from yesterday's 'missing evolutionary link' to today's 'Edenic origin of humankind'. I question human biogenetics as a home for meanings of history, humanity and belonging. To this end, I read selected genetic genealogical studies of communities considered 'KhoiSan', 'Coloured' and 'Lemba' in South Africa against concerns raised in recent literature about the use of such studies in the United States of America. I ask why bio-centric conceptions of 'race', identity and 'the human' remain so resilient. To grapple with this question, I draw on Sylvia Wynter's (2001; 2003) adaptation of Frantz Fanon's (1986) concept of 'sociogeny' into 'the sociogenic principle'. I close by suggesting the code for what it means to be human is best located in the 'word' rather than the human genome.