Scientists have the ability to use DNA from three adults to make one embryo. But should they? A. Dudzinski/Science Source hide caption

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Babies With Genes From 3 People Could Be Ethical, Panel Says
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More African-Americans Are Learning Their Roots With Genetic Testing
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Powerful 'Gene Drive' Can Quickly Change An Entire Species
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Chromosomes and double helix over silhouettes of man Lee Woodgate/Ikon Images/Getty Images hide caption

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'Great Pause' Among Prosecutors As DNA Proves Fallible
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The model of a DNA stands on a desk during a press conference to announce the winners of the Nobel Prize in Chemistry 2015 on Wednesday at the Royal Swedish Academy of Sciences in Stockholm. Sweden's Tomas Lindahl, Paul Modrich of the US and Turkish-American Aziz Sancar won the Nobel Chemistry Prize for work on how cells repair damaged DNA. Jonathan Nackstrand/AFP/Getty Images hide caption

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Mammoths had a distinctive version of a gene known to play a role in sensing outside temperature, moderating the biology of fat and regulating hair growth. That bit of DNA likely helped mammoths thrive in cold weather, scientists say. Courtesy of Giant Screen Films, 2012 D3D Ice Age, LLC/Penn State University hide caption

toggle caption Courtesy of Giant Screen Films, 2012 D3D Ice Age, LLC/Penn State University
Checking DNA Against Elephants Hints At How Mammoths Got Woolly
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A woolly mammoth skeleton gets auctioned off in Billingshurst, England. Peter Macdiarmid/Getty Images hide caption

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If Science Could 'Clone A Mammoth,' Could It Save An Elephant?
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Cambrian Genomics says that what it calls a DNA printer is essentially a DNA sorter — it quickly spots and collects the desired, tailored stretch of DNA. Courtesy of Cambrian Genomics hide caption

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DNA 'Printing' A Big Boon To Research, But Some Raise Concerns
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Critics Lash Out At Chinese Scientists Who Edited DNA In Human Embryos
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Combining The DNA Of Three People Raises Ethical Questions
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