Signs of sleep seen in jellyfish

Jellyfish snooze just like the rest of us. Like humans, mice, fish and flies, the upside-down jellyfish Cassiopea exhibits the telltale signs of sleep, scientists report September 21, 2017 in the journal Current Biology. ...

Origins of DNA folding suggested in archaea

In the cells of palm trees, humans, and some single-celled microorganisms, DNA gets bent the same way. Now, by studying the 3-D structure of proteins bound to DNA in microbes called Archaea, University of Colorado Boulder ...

New tools will drive greater understanding of wheat genes

Howard Hughes Medical Institute scientists have developed a much-needed genetic resource that will greatly accelerate the study of gene functions in wheat. The resource, a collection of wheat seeds with more than 10 million ...

Dragonflies on the hunt display complex choreography

The dragonfly is a swift and efficient hunter. Once it spots its prey, it takes about half a second to swoop beneath an unsuspecting insect and snatch it from the air. Scientists at the Howard Hughes Medical Institute's Janelia ...

Cellular network transforms fungus when temperatures rise

(Phys.org) —When the infectious fungus Histoplasma capsulatum feels the temperature start to rise, it undergoes a transformation. As it shifts its shape from long filaments to oval cells, the pathogen switches on genes ...

New level of genetic diversity in human RNA sequences uncovered

A detailed comparison of DNA and RNA in human cells has uncovered a surprising number of cases where the corresponding sequences are not, as has long been assumed, identical. The RNA-DNA differences generate proteins that ...

DNA typewriter taps out messages inside cells

While developing a new system for recording within cells, geneticist Jay Shendure and his team decided to give it a test run by using it to encode text. Since their invention relied on a nearly brand-new recording medium, ...

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