科学与环境
DNA 'flight recorder' traces embryonic development cell by cell
来源: Phys.org - latest science and technology news stories · 发布于
For decades, scientists have been able to look at individual moments in the development of an embryo: a snapshot of a developing brain, a picture of how the heart takes shape or a glimpse of cells beginning to form the nervous system.
For decades, scientists have been able to look at individual moments in the development of an embryo: a snapshot of a developing brain, a picture of how the heart takes shape or a glimpse of cells beginning to form the nervous system.
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DNA recording system reveals how a single cell becomes a body
Scientists have traced the development of a mouse embryo from its first two cells to the formation of organs, using a remarkable DNA recording system that reveals the family history of individual cells. Their findings uncover how different cell types emerge on their own schedules
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Newly discovered antiviral system in bacteria is 'strangest of its kind'
Researchers at Gladstone Institutes have uncovered an unusual bacterial immune system that operates in reverse of known defenses. The discovery, published in Molecular Cell, details the mechanics of "type VI retrons"—a counterintuitive class of bacterial defenses. More than just
Phys.org - latest science and technology news stories ·
Scientists find a surprising genetic twist behind octopus intelligence
The remarkable intelligence of octopuses, squid, and cuttlefish may trace back to an ancient reshuffling of their DNA that created new connections between genes. Scientists discovered that these changes in the genome's 3D structure may have helped drive the evolution of their unu
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Scientists accidentally discover a genetic code that breaks the rules of life
Scientists accidentally discovered a microscopic organism with a genetic code that breaks a rule researchers thought was nearly universal. While testing a new DNA sequencing technique, they examined a previously unknown protist collected from a freshwater pond at Oxford Universit
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BA flight forced to turn back over cracked window
British Airways said the plane landed safely at Gatwick and passengers were due to resume their journey.
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