The South African Khoe-San communities are no strangers to exploitative research. One research team is trying to provide genetic ancestry results to community members. But they still face many challenges.
Using a technique called admixture mapping, researchers can leverage the diversity of people with mixed ancestry to look for hard-to-find genetic risk factors for diseases like Alzheimer’s disease.
An Anglo-Saxon burial mound in Taplow Court, England.
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New analysis of Anglo-Saxon skulls suggests that being an Anglo-Saxon was a matter of language and culture, and not genetics.
New DNA analysis revealed that Calvin Hoover killed Christine Jessop in 1984. Toronto Police Chief James Ramer sits next to a screen displaying photos of Calvin Hoover during a news conference on Oct. 15, 2020.
THE CANADIAN PRESS/Chris Young
Christine Jessop was murdered in 1984 and, 36 years later, DNA evidence finally identified her killer. But the police investigation’s use of genetic genealogical databases raised questions about privacy.
The view from the dungeon of the Cape Coast Castle.
Alana Dillette
Through science, art and technology, we are able to reconstruct the faces of the dead based on their remains. The researcher who did this work for descendants in Sutherland explains the process.
Ancestry ad depicts a white man in 19th-century clothing standing in front of a Black woman holding a ring telling her they can leave and be together in Canada.
Ancestry
Before you attribute a trait to a famous ancestor like George Washington or Marie Antoinette, you might want to see how much DNA you actually share with these people. It’s not what you thought.
We’ve underestimated the extent of mixing between ancestral groups throughout human history.
from www.shutterstock.com
Estimating our ancestry is hard – because our backgrounds are much more mixed up than we thought. So don’t take your DNA ancestry test results literally: they’re just a prediction.
The results of genetic ancestry tests are grossly over-simplified. A new study shows the tests reinforce what you want to believe rather than offering objective, scientific proof of who you are.
It all begins with spitting in a tube like this one.
Scott Beale/Laughing Squid
More people are sending off saliva samples to find out about their genetic roots. But the raw DNA results go way beyond genealogical data – and could deliver unintended consequences.
Families have secrets - and sometimes we don’t know our complete genetic histories.
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Online genetic testing promises many things. Some are the stuff of fantasy, while others, even if scientifically feasible, still carry risks. Consider these five things before ordering a test.
We want to know we are connected - yet we crave to be unique. Moral white panic is also involved and so is big business.
(Shutterstock)
The current craze to search for our ancestry is complicated and paradoxical. We want to know we are connected – yet we crave to be unique. Moral white panic is also involved and so is big business.
Rock art in central Northumberland, northern England.
Do you own your own genetic data? The future of genomic databases is almost here, and now is the time to figure out how we are going to allow this information to be used.
This skull belongs to the carnivorous gorgonopsian therapsid Smilesaurus ferox which lived 255 million years ago.
Cradle of Humankind/Flickr/Wikimedia
Modern sabre-tooth mammals have their canines constantly on display. This allows them to seduce mates. But was sexual selection also an important phenomenon among our pre-mammalian ancestors?