As individuals, our DNA offers insight into things like our personalities, our health and where we come from. But taken together, all those individual portraits can add up to paint a detailed history of humankind.
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Diagnosing disease often requires analysing and detecting single cells with lab tests that cost hundreds of dollars each. Hospitals in a poor country stricken with a disease epidemic like HIV or malaria simply might not have the funds to run all of those tests. Scientists are looking for a cheaper option.
The ancestors of Aboriginal Australians and Papua New Guineans diverged from Eurasian populations around 72,000 years ago according to a new DNA analysis of 83 Indigenous Australians from the Wongatha Nation in the North-Eastern Goldfields of Victoria.
The finding supports the idea that humans spread out of Africa in a single event, in the first comprehensive population-level whole-genome study of human genetic diversity in Australia.
Chemmart's myDNA test described itself as "personalised medicine" where "your DNA results can help guide your future health and lifestyle choices" in Chemmart's catalogues, television infomercials, in-store brochures and other promotional materials — and ACCC isn't happy about it, saying it "risked conveying a false or misleading impression regarding the usefulness of the genetic test, and the consumers for whom it may be appropriate".
Mitochondria float around in the goo of your cells, tirelessly making the molecules that power your body. But these mitochondria used to be independent of your body; they were bacteria, floating free in the world. You are, at a fundamental level, the result of symbiosis — the interdependence of two life forms.