Showing posts with the label DNA testing

Scientists Use Lice Nits to Find More About Ancient Mummies and Their Lifestyle

Image Credit: Gilles San Martin/ Wikimedia Commons Scientists have recovered human DNA from the 'cement' that head lice use to bind their eggs to hairs potentially opening up a new window into the past. In a recently published study, DNA was extracted for the first time from cement on hairs obtained from mummified corpses dating back 1,500-2,000 years. As female lice attach eggs, known as nits, to the hair, skin cells from the scalp also get enclosed in the cement made by female lice, saving them from decay for a considerable period. The University of Reading led the study, which also included other researchers from Argentina, Wales and Denmark. The findings of the study were published in  Molecular Biology and Evolution . A mummified adult man of the Ansilta culture, from the Andes of San Juan, Argentina, dating back approx 2,000 years. Credit: Universidad Nacional de San Juan Ancient DNA has been retrieved mostly from thick bone from the skull or from within teeth, as these

Fake news, fake apps, fake treatments and fake tests in the time of Coronavirus

The year is 2020. The pandemic is COVID-19. Countries are grappling with a virus that is believed to have found its way from a bat, through pangolin trade, into the human body and in a matter of months, spread from patient zero to over 25,00,000 confirmed cases world over. No standardized treatment is available, vaccines are months away from development, personal protective equipment is scarce, testing kits are faulty but that’s not where we are concentrating our energies on. We are spreading unverified news through social media apps, blaming religious communities for spreading the virus intently and forcing governments to spend more time devising strategies to contain fake news than the virus. Across Europe and in Britain, people have correlated the roll-out of 5G mobile phone technology to the spread of Coronavirus and set about putting 5G towers on fire .  The spread of these theories has been so rapid and viral that the World Health Organization had to spend resource

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