Genetics

Researchers Identify New Gene Regions Associated with Insomnia

Insomnia is a common disorder linked with adverse long-term medical and psychiatric outcomes. It affects 10-20% of adults, and several twin and family studies suggested that about a third of the risk of insomnia is inherited. Now a team of scientists from the University of Exeter and Massachusetts General Hospital …

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How Carbon Nanotubes Can Modify Plant DNA

  Genetically modified plants have existed for many years, but the processes used to make the modifications are surprisingly inefficient. Researchers at the University of California Berkeley have developed a technique that could make plant genetics considerably more precise. Rather than the “spray and pray” approach, scientists might soon be …

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Extremely Rare Sesquizygotic Twins Identified in Australia

Twins are traditionally classified as monozygotic (identical) or dizygotic (fraternal). Monozygotic twinning results in genetically identical individuals, whereas dizygotic twins share approximately 50% of their DNA sequence identity, as do full siblings. Sesquizygosity is a third form of twinship, in which individuals share between 50% and 100% of genetic identity. …

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Icefish Genome Reveals Adaptations to Extreme Antarctic Environments

A multinational team of researchers has successfully sequenced the genome of the Antarctic blackfin icefish (Chaenocephalus aceratus), opening a genetic window on fish that evolved over the last 77 million years to survive in extreme Antarctic temperatures. The Antarctic blackfin icefish (Chaenocephalus aceratus). Image credit: Thomas Desvignes. Antarctic icefishes are …

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Researchers Create Eight-Letter Genetic System: Hachimoji DNA

DNA is naturally composed of four basic molecules called nucleotides (commonly known as ‘letters’) — A (adenine), T (thymine), C (cytosine) and G (guanine) — that form hydrogen bonds in order to pair. A research team led by Dr. Steven Benner of the Foundation for Applied Molecular Evolution added an …

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Researchers Sequence Genome of Great White Shark

A global group of researchers from the USA and also Europe has actually efficiently sequenced the genome of the terrific white shark (Carcharodon carcharias )as well as contrasted it to the genomes from a range of various other animals. The terrific white shark (Carcharodon carcharias). Photo credit history: Byron Dilkes, …

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Researchers Sequence Genomes of Five Bird-of-Paradise Species

An international team of scientists has sequenced and analyzed the genomes of representatives from all five major clades within the birds-of-paradise family (Paradisaeidae): the paradise crow (Lycocorax pyrrhopterus) from Obi Island in Indonesia, the paradise riflebird (Ptiloris paradiseus) from New South Wales, Australia, the huon astrapia (Astrapia rothschildi), the King …

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