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The findings contradict what has been observed in humans.  

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In response to short DNA fragments, lymphocytes release mitochondrial DNA that helps trigger an immune response.

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image: Neanderthal-Human Interbreeding Got an Early Start

Neanderthal-Human Interbreeding Got an Early Start

By Shawna Williams | July 5, 2017

Mitochondrial DNA in Neanderthal bone suggests humans first left Africa earlier than previously thought.

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image: Improving Mitochondrial Replacement Therapy

Improving Mitochondrial Replacement Therapy

By Anna Azvolinsky | June 8, 2016

Pronuclear transfer can reduce the risk of transferring defective mitochondria, a study shows.  

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image: Revered Biologist Dies

Revered Biologist Dies

By Catherine Offord | April 27, 2016

Rick Harrison, an evolutionary biologist known for his research on speciation, has passed away at age 70.

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Experts from the US National Institute of Medicine outline their conditional approval of clinical research on mitochondrial replacement techniques.

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image: Opinion: Too Many Mitochondrial Genome Papers

Opinion: Too Many Mitochondrial Genome Papers

By David R. Smith | June 29, 2015

And too few insights gleaned from them

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image: Week in Review: July 7–11

Week in Review: July 7–11

By Tracy Vence | July 11, 2014

Assessing mtDNA mutations among healthy people; heritability of intelligence; epigenetic inheritance of maternal malnutrition markers; consumers buy into DNA ancestry

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image: Unsinkable Evidence

Unsinkable Evidence

By Jef Akst | May 1, 2014

Genetic testing disproves one woman’s claims to have been a survivor of the Titanic disaster.

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image: Sequencing Mummies

Sequencing Mummies

By Dan Cossins | August 1, 2013

Peek inside the South Tyrol Museum of Archaeology in Italy, where researchers are unravelling the DNA of centuries-old mummies.

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