New study finds prehistoric migration from China to Americas
As the last continents to be settled by humans, the question of how and when people first came to the Americas has long intrigued scientists.
As the last continents to be settled by humans, the question of how and when people first came to the Americas has long intrigued scientists.
Archaeology
May 13, 2023
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Scientists have used mitochondrial DNA to trace a female lineage from northern coastal China to the Americas. By integrating contemporary and ancient mitochondrial DNA, the team found evidence of at least two migrations: ...
Archaeology
May 9, 2023
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571
An international team of oceanographers, parasitologists and biologists has found that the single-celled alga Cryptomonas gyropyrenoidosa harbors seven genomes in its one cell. In their study, reported in the journal Current ...
A high-throughput single-cell single-mitochondrial genome sequencing technology known as iMiGseq has provided new insights into mutations of mitochondrial DNA (mtDNA) and offers a platform for assessing mtDNA editing strategies ...
Cell & Microbiology
Apr 13, 2023
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Muscle degeneration, the most prevalent cause of frailty in hereditary diseases and aging, could be caused by a deficiency in one key enzyme in a lipid biosynthesis pathway. Researchers at the Institute of Molecular Biotechnology ...
Cell & Microbiology
Mar 20, 2023
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190
The existing wildlife of a region is heavily shaped over generations by environmental factors and human activity. Activities like urbanization and hunting are known to reduce wildlife populations. However, some cultural or ...
Plants & Animals
Mar 14, 2023
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A new study shows for the first time a connection between a mitochondrial metabolite and the activation of an inflammatory response. Mitochondria are functional units of our cells that fulfill important tasks, i.e. chemical ...
Cell & Microbiology
Mar 8, 2023
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The pink-throated brilliant hummingbird, Heliodoxa gularis, has, unsurprisingly, a brilliant pink throat. So does its cousin, the rufous-webbed brilliant hummingbird, Heliodoxa branickii. When scientists found a Heliodoxa ...
Plants & Animals
Feb 28, 2023
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Cartilaginous fish have changed much more in the course of their evolutionary history than previously believed. Evidence for this thesis has been provided by new fossils of a ray-like shark, Protospinax annectans, which demonstrate ...
Evolution
Feb 28, 2023
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Curled up on the sofa, you watch your dog snoozing nearby. Is he dreaming of the bowl of biscuits he gobbled down? Or could he be picturing the great odyssey of his forbearers, who roamed in packs across the vast steppes ...
Plants & Animals
Feb 23, 2023
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