Africa Genome Education Institute

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The Africa Genome Education Institute is dedicated to the public discussion of genetics and biotechnology in Africa. We seek to share, discuss, and disseminate information about genetics and biotechnology as it impacts upon the continent. The Teaching Biology Project is a program of the AGEI.

Darwin Seminar Next Events

October Lecture

Lecture to be announced.

New Learning Centre, Health Sciences Campus, Anzio Road, UCT.

Contact us for details or view the Events Schedule.

Darwin Trail

Darwin TrailThe Darwin Trail Map was launched officially on Sunday, 27 September 2009.

The map was presented to ten schools, using Interactive Telematic Technology through Stellenbosch University, a virtual teaching system which beams lessons out to learners through satellite broadcasting. We are very grateful to the Western Cape Education Department and the Stellenbosch University for allowing us to use lesson time to present this valuable resource.


Click here to see the map.

Claiming your ancestry
Written by Dr Wilmot James   
Tuesday, 25 March 2008 00:19

With her husband, Frederika Spangenberg drove all the way from Kimberley to personally collect her DNA results. Through her mother’s line of descent she turned out to be L0d. Himla Soodyall wrote that L0d is thought to be the oldest of the L0 groups and common among the Khoesan populations of southern Africa.

I thought of Jan Raats, the director of the apartheid government’s census, who designed racial classification in the early 1950s. He had come up with the following definitions:

  1. ‘Asiatic means a person of whose parents are or were members of a race or tribe whose national or ethnical home is Asia, and shall include a person partly of Asiatic origin living as an Asiatic family, but shall not include any Jew, Syrian or Cape Malay;
  2. Bantu means a person both of whose parents are or were members of an aboriginal tribe of Africa, and shall include a person of mixed race living as a member of the Bantu community, tribe, kraal or location, but shall not include any Bushman, Griqua, Hottentot or Koranna;
  3. Coloured means any person who is not a white person, Asiatic, Bantu or Cape Malay as defined, and shall include any Bushmen, Griqua, Hottentot or Koranna;
  4. A white person means a person both of whose parents are or were members of a race whose national or ethnical home is Europe, and shall include any Jew, Syrian or other person who is in appearance obviously a white person unless and until the contrary is proven.’
Read more... [Claiming your ancestry]
 
The medical effects of genetic variation
Written by Dr Wilmot James   
Thursday, 06 March 2008 08:19
An early racial slight
An early racial slight

Scientists say that race is a meaningless concept; in that it does not explain anything in particular. The BBC headline for a news item published on 29 February 2008 though read ‘Race differences in immune genes’. If race is not meaningful a concept then what is this about racially based differences in immunity?

Either race is meaningless or it is not. So what is going on here? This is the issue; human beings vary as you can tell by just looking at how unique each one of us is. Percentage-wise differences are coded by anywhere between 0.01 to 2 per cent of the human genome. The differences include visible characteristics like colour or non-visible ones like blood type.

Differences are why we are here today. In my first demography lectures I used to give to sociology students at the University of Cape Town, I used vulnerability to smallpox or other infectious diseases as an example of selective mortality. If our ancestors had the same vulnerability to smallpox, they we all would have perished and left our species extinct.

The BBC news item refers to fascinating research done by Eileen Dolan and her team at the University of Chicago. ‘We want to understand’ she says ‘why different populations experience different degrees of toxicity when taking certain drugs’. As clinicians and population geneticists know, this is a fair, compelling question, to ask.

Read more... [The medical effects of genetic variation]
 
Another term for 'Coloured'...
Written by Dr Wilmot James   
Wednesday, 27 February 2008 08:03
... would still be meaningless
... would still be meaningless

We always thought that the term coloured was pretty meaningless. Let me now tell how meaningless, judging from the DNA based information just released by the Living History Project. A joint initiative of the Africa Genome Education Institute and Ancestry24.com, we took 500 DNA samples from individuals in Cape Town, Pietermaritzburg and Johannesburg during 2007 and are releasing the results now.

The first result I want to tell you about is that of Keith Forbes. From his mother’s side he is West African. Technically, he inherited the energy producing mitochondrial DNA from his female ancestors linked a group referred, in the jargon, to as L2a1b. ‘The distribution of group L2a’ Himla Soodyall (2008) wrote, ‘is possibly a signature of the Bantu expansion, the great movement of black people of Niger-Congo origin who migrated in waves throughout Africa to eventually dominate the continent demographically speaking.

Read more... [Another term for 'Coloured'...]
 
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