搜索结果: 1-14 共查到“生物学 Switch”相关记录14条 . 查询时间(0.072 秒)
Asian butterfly populations show different mimicry patterns,thanks to genetic 'switch'（图）
Asian butterfly populations different mimicry patterns genetic 'switch'
2021/1/28
A new study by researchers at the University of Chicago and the City College of New York has identified a unique, genetic "mimicry switch" that determines whether male and female Elymni...
Flipping a metabolic switch to slow tumor growth（图）
Flipping metabolic switch tumor growth
2020/8/27
An enzyme can be used as a metabolically responsive "switch" that decreases tumor growth, according to a new study. The findings are published in the journal Nature.By restricting the dietary ami...
Environmental change is triggering an identity switch in grasslands（图）
Environmental change triggering identity switch grasslands
2019/10/21
Since the first Homo sapiens emerged in Africa 300,000 years ago, grasslands have sustained humans and thousands of other species. Today, those grasslands are shifting. Global change -- including clim...
Perfect timing:Making the 'switch' from juvenile to adult（图）
Perfect timing Making switch juvenile adult
2019/10/23
Very little is known about how the onset of puberty is controlled in humans, but an NSF-funded discovery of a new gene in the roundworm C. elegans could be the "missing link" that determines the juven...
Plant Genes May Lack Off Switch,But Have Volume Control
Plant Genes Lack Off Switch Volume Control
2017/4/27
Scientists at the University of California, Davis have discovered that DNA sequences thought to be essential for gene activity can be expendable. Sequences once called junk sometimes call the shots in...
Off-Switch for CRISPR-Cas9 Gene Editing System Discovered
Off-Switch CRISPR-Cas9 Gene Editing System
2017/1/9
UC San Francisco researchers have discovered a way to switch off the widely used CRISPR-Cas9 gene-editing system using newly identified anti-CRISPR proteins that are produced by bacterial vi...
A Photolysis-Triggered Heme Ligand Switch in H93G Myoglobin
Animals Carbon Monoxide Iron Ferrous Compounds Heme Glycine Myoglobin Ligands Mutagenesis, Insertional Lasers
2016/5/23
Resonance Raman spectroscopy and step-scan Fourier transform infrared (FTIR) spectroscopy have been used to identify the ligation state of ferrous heme iron for the H93G proximal cavity mutant of myog...
UC Davis scientists demonstrate DNA-based electromechanical switch
UC Davis scientists DNA-based electromechanical switch
2015/12/22
A team of researchers from the University of California, Davis and the University of Washington have demonstrated that the conductance of DNA can be modulated by controlling its structure, thus openin...
A research team based in Houston’s Texas Medical Center has found that the proteins that turn genes on by forming loops in human chromosomes work like the sliding plastic adjusters on a grade-schooler...
Plant Hormone‘Switch’Unravels Chromatin to Form Flowers,Penn Biologists Find
Plant Hormone Switch Chromatin to Form Flowers Penn Biologists
2015/11/13
Because plants cannot pick up and move, they have evolved a plethora of strategies to cope with environmental stresses, whether they bring a harsh spell of drought or a browsing deer.One of these stra...
A ‘STAR’ is born: Engineers devise genetic 'on' switch
STAR is born Engineers devise genetic switch
2015/3/4
All life processes depend on genes turning on and off. Cornell scientists have created a new “on” switch to control gene expression – a breakthrough that could revolutionize genetic engineering.Synthe...
Probabilistic and Flux Landscapes of the Phage $λ$ Genetic Switch
Probabilistic Flux Landscapes the Phage $λ$ Genetic Switch Biological Physics
2012/4/20
The phage $\lambda$ infection of an \textit{E. coli} cell has become a paradigm for understanding the molecular processes involved in gene expression and cell signaling. This system provides an exampl...
Stochastic analysis of a miRNA-protein toggle switch
Toggle switch, chemical master equation, stochastic versus deterministic, biochemical reactions
2011/9/5
Within systems biology there is an increasing interest in the stochastic behavior of genetic and biochemical reaction networks. An appropriate stochastic description is provided by the chemical master...
April 5, 2007，McGill University researchers have discovered that a mutant gene improves the long-term memory of laboratory mice, a discovery they hope will one day lead to a better quality of life for...