Tag: "genetically" at biology news
Of lice and men
...ors. The study found modern humans have two genetically
distinct types of head lice. One type is found wor... new study showed two almost identical-looking but genetically
different strains of head lice diverged 1.18 million years ago. That indicates each of the two kinds...
How roots control plant shoots
...ting the process someday might allow scientists to genetically
engineer crops and other plants to be more productive in dry conditions for example, so that crops could keep producing abundant leaves in a drought by irrigating them while overriding the genetic signal that normally would inhibit growth, Sieburth ...
Dying cells encourage neighbors to grow
...overed specific mechanisms by which cells that are genetically
programmed to commit suicide stimulate growth in surrounding cells. The research, published online in Developmental Cell, provides new information about how normal, healthy tissues are maintained and may shed some light on a pathway that may contribu...
ASPB opposes ban of GE crops in Butte County Ballot Measure D
...lot. Passage of Measure D would ban the growing of genetically
engineered crops in the county. ASPB said in a le...e propagation, cultivation, raising and growing of genetically
engineered organisms in Butte County constitute a public nuisance pursuant to the existing Butte Cou...
Embryonic stem cells correct congenital heart defect in mouse embryos
...ected into early embryos of mice whose hearts were genetically
predisposed to develop a lethal defect, rescued the heart from developing the disorder by not only producing normal daughter cells that were incorporated into the defective embryonic heart but also by releasing biological factors into the nearby vici...
Technique for genetically modifying blood stem cells brings cure for blood diseases closer
...whether this technique alone will result in enough genetically
modified HSCs to produce enough red blood cells co...ctor and enriching the population of HSCs that are genetically
modified by the gamma-globin gene could one day offer patients with hemoglobin diseases the promise ...
Laboratory test of evolutionary theory confirms importance of links between populations
...h emphasizes that every species is a collection of genetically
distinct populations that are linked across landscapes, resulting in complex geographic mosaics of species interactions that can evolve differently in different locations. "We have a pretty solid theoretical framework for explaining coevolutionary in...
Researchers find protein that makes long-term memory possible
...pal slices from the brain tissue of mice that were genetically
incapable of producing the chemicals needed to manufacture mBDNF. In one experiment, the researchers could not induce L-LTP in hippocampal slices from mice incapable of producing tPA. However, the researchers could induce L-LTP in the brain...
Using fruitflies to examine alcohol tolerance
...artially distinct in mechanistic terms, as well as genetically
distinguishable, from one another. "Alcohol tole...understanding, that is, that some humans possess a genetically
influenced tendency to develop alcoholism and others do not. The great similarity among the genomes...
Identifying genes that contribute to a low level of response to alcohol
...s of potential interest. Alcoholism is a complex, genetically
influenced disorder. Multiple phenotypes measura...isk factor for alcoholism in the future, and it is genetically
influenced. For researchers who are looking for genes, I can say 'let me save you some time,' becau...
Biological importance of basal activity of appetite suppressor
...lly occurring MC4R mutations in obese patients. By genetically
transferring normal or mutant versions of the MC4R gene into cells in culture, the authors were able to define a cluster of mutations at the N-terminal end that impaired the constitutive activ-ity of MC4R. Deletion of the N-ter-minal portion of the p...
Zebrafish may offer researchers powerful new tool for studying innate immunity
...e National Academy of Sciences. "This is the most genetically
complex system of innate immune receptors thus far described,"said principal investigator Gary Litman, PhD, Hines professor of pediatrics who works at the Children's Research Institute at the University of South Florida and All Children's Hospital. "...
ASPB opposes proposed ban of GMOs in Humboldt county ballot measure M
...ot November 2. Measure M would ban the growing of genetically
modified crops in Humboldt County. In the letter...corporation to propagate, cultivate, raise or grow genetically
modified organisms in Humboldt County. Primary enforcement responsibility is placed upon the Agricul...
Gene-altered mouse is model for rare autoimmune syndrome
...ognize and attack such invaders. While other genetically
altered mouse models had been produced that showed...al mice by transferring bone marrow cells from the genetically
altered mice. Bone marrow is the source of immune cells that could cause the disorder. The researche...
Mice thrive despite massive genetic makeover
...ome were deleted. To do this, embryonic cells were genetically
engineered to contain the newly compact mouse genome. Mice were subsequently generated from these stem cells. The research team then compared the resulting mice with the abridged genome to mice with the full-length version. A variety of features we...
Genetically modified parasite lets researchers probe immune system's memory
...he University of Pennsylvania infected mice with a genetically
modified form of Leishmania created by microbiologists at Washington University School of Medicine. The modified Leishmania lacks an enzyme required for DNA synthesis and can be completely wiped out by the mouse immune system. Researchers found that ...
Passage of GMO ban in San Luis Obispo would encourage use of harsh pesticides
...ember Ballot Measure Q. By banning the growing of genetically
modified crops, Measure Q would encourage the cont... or entity to propagate, cultivate, raise, or grow genetically
engineered organisms in San Luis Obispo County. If the Agricultural Commissioner...
Academics find that the finger of destiny points their way
...he same throughout life. The length of fingers is genetically
linked to the sex hormones, and a person with an index finger shorter than the ring finger will have had more testosterone while in the womb, and a person with an index finger longer than the ring finger will have had more oestrogen. The difference i...
New genomic method can identify disease-causing genes
...enome is similar to that of humans and mice can be genetically
manipulated. Because of this, the mouse is the most commonly used experimental model for studying human disease, and the "mouse to man" approach is widely used. Since analyses of mouse genetic models by traditional methods are very time-consuming and...
Mouse study: 'Critical' Down syndrome region isn't
...he Oct. 22 issue of Science , based on studies in genetically
engineered mice, shreds a 30-year-old notion that genes in this region are largely responsible for the condition's characteristic facial features and some of its other common traits. Down syndrome, which affects roughly 1 in 700 live births, is the m...
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