30 Sep '16, 6pm

New Twist on Popular Theory for the Origin of Life on Earth via @EcoWatch

There are multiple theories around the origin of life on Earth , but the most commonly accepted one is the "RNA World " theory, which posits that ribonucleic acid (RNA) was the precursor to deoxyribonucleic acid (DNA )—the basic building block today of all living organisms and many viruses . But scientists at The Scripps Research Institute (TSRI) in La Jolla, California, found a problem with that hypothesis. It led them to suggest that RNA and DNA evolved simultaneously. Representation of the DNA double helix. Credit: Wikipedia "Even if you believe in a RNA-only world, you have to believe in something that existed with RNA to help it move forward," said Ramanarayanan Krishnamurthy, associate professor of chemistry at TSRI and senior author of the new study . DNA is the familiar double-helix of high school biology. RNA is essentially one side of the ladder. The problem with...

Full article: http://www.ecowatch.com/earth-origin-life-theory-20228787...

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uk.businessinsider.com 30 Sep '16, 9pm

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via @triplepundit

via @triplepundit

triplepundit.com 30 Sep '16, 9am

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