genetics

Study of Worms Reveals ‘Selfish Genes’ That Encode A Toxin – and Its Antidote

A UCLA study has found that a common strain of Caenorhabditis elegans — a type of roundworm frequently used in laboratory research on neural development — has a pair of genes that encode both a poison and its antidote. The new research also revealed that if worms with the two genes mate with wild strains of C. elegans that don’t have both genes,…

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Project to Map Human Brain From Womb to Birth Releases Stunning Images

A landmark project to map the wiring of the human brain from womb to birth has released thousands of images that will help scientists unravel how conditions such as autism, cerebral palsy and attention deficit disorders arise in the brain. The first tranche of images come from 40 newborn babies who were scanned in their sleep to produce stunning high-resolution…

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Scythian Horse Breeding Unveiled: Lessons for Animal Domestication

Nomad Scythian herders roamed vast areas spanning the Central Asian steppes during the Iron Age, approximately from the 9th to the 1st century BCE (Before Common Era). These livestock pastoralists, who lived on wagons covered by tents, left their mark in the history of warfare for their exceptional equestrian skills. They were among the first to master mounted riding and…

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Study Finds First Molecular Genetic Evidence of PTSD Heritability

A large new study from the Psychiatric Genomics Consortium provides the first molecular genetic evidence that genetic influences play a role in the risk of getting Posttraumatic Stress Disorder (PTSD) after trauma. The report extends previous findings that showed that there is some shared genetic overlap between PTSD and other mental disorders such as schizophrenia. It also finds that genetic risk…

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Fish Study Shows Important Genome Interactions in Animal Cells

In a new study, researchers at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science examined how the interaction of two genomes in animal cells — the mitochondrial and nuclear genomes — interact to affect adaptation of the Atlantic killifish to different temperatures. They showed that although these genomes are separate physical entities, the mitochondrial genome affects…

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Scientists Assemble Zika Virus Mosquito Genome From Scratch

A team spanning Baylor College of Medicine, Rice University, Texas Children’s Hospital and the Broad Institute of MIT and Harvard has developed a new way to sequence genomes, which can assemble the genome of an organism, entirely from scratch, dramatically cheaper and faster. While there is much excitement about the so-called “$1000 genome” in medicine, when a doctor orders the…

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