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Posts Tagged "chromosome"

Observations

New Slice of Wheat Genome Could Help Feed Growing Global Population

wheat genome sequence

Common wheat (Triticum aestivum) might seem as boring as the sliced bread it is baked into. But genetically, it is vexingly complex. Its genome is about six times as big as our own, and its genes are distributed among six sets of chromosomes (we humans have just two). In fact, the T. aestivum genome contains [...]

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Observations

Researchers Engineer Rewriteable Digital Data Storage in the DNA of Living Bacteria

DNA

Engineers have invented a way to store a single rewriteable bit of data within the chromosome of a living cell—a kind of cellular switch that offers precise control over how and when genes are expressed. For three years, Jerome Bonnet, Pakpoom Subsoontorn, and Drew Endy of Stanford University tinkered with the switch in Escherichia coli [...]

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Observations

New 3-D model shows how proteins bind to DNA packages

how proteins bind to dna nucleosome

Inside cells, some DNA is wound into tight packets, known as nucleosomes. Special enzymes bind to these compact packages of genetic material, helping to activate genes. But just how the crucial binding happens in three-dimensional space was unclear. "For years, the research community has been at an impasse," Frank Pugh, director of the Penn State [...]

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Observations

Sowing their seeds: Neolithic farmers spawned most European males

european male farmer agriculture y chromosome

Agriculture emerged on the human cultural scene about 10,000 years ago, spreading rapidly through Europe from the Near East to the British Isles in about 4,000 years. But did this world-changing technology get disseminated via an expanding wave of industrious farmers or through word-of-mouth among local hunter-gatherer populations? To help answer this much-debated question, researchers [...]

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