Tag: "evolve" at biology news
Transgenic Rice Plants Resist Insects, Drought And Salt Damage
...an't afford to wait for domestic rice varieties to evolve
resistance to insect pests or drought," said Ray Wu, Cornell professor of biochemistry, molecular and cell biology, and leader of the international team that spliced other plant species' genes into rice. "Hundreds of millions of hungry people need t...
Methane Deep In Ocean Crust Could Feed Chemical-Hungry Microorganisms
...of these fluids cool to 500 C to 600 C, the fluids evolve
into very methane-rich compositions. The secon...r to react with the surrounding rock and fluids to evolve
into methane-rich compositions. The process can take thousands of years. Kelley says that the sec...
World's Experts Plan Global Locator Service For Environmental Information
...plied to electronic networks, and is positioned to evolve
along with rapid advances in information discovery and natural language processing." The standard adopted for this service is ISO 10163, known in the United States as ANSI Z39.50. This standard specifies how electronic network searches shou...
Scientists Trace Roots Of Protein That Keeps Antarctic Fish From Freezing
...tein for speciessurvival. "Most new protein genes evolve
from the recycling of existing genesor gene segments," said Chi-Hing C. (Chris) Cheng of the U. of I. department of molecular andintegrative physiology. "They are taken and reassembled into a newgene, with nothing really new being created. "The ant...
New Evidence For Corn's Ancestry Could Lead To Insect And Drought Resistant Crops
...he spikes of some wild teosinte plants to directly evolve
into the firstprimitive ears of corn, Eubanks said. Under that hypothesis, Native Americansthen improved the first corns through accidental or intentional breedingefforts. But Eubanks maintains that Tripsacum is corn's other ancestorplant. And the...
Low Oxygen, Key To Fetal Development, Also Offers Cancer Clues
... byattaching to the uterus. These cells eventually evolve
intotumor-like cells that invade the mother's uterus and establishblood flow to the fetus, giving it access to the nutrients in themother's blood. The team found that the amount of oxygen in blood directlyregulates how the placenta forms. Under ...
Short-Course TB Prophylaxis Effective In HIV-Infected Individuals
...ole of preventive therapy continues to evolve
in the developing world, this short-course regimen may help extend the reach of therapy in certain high-risk groups, including HIV-infected individuals and children living in households with people with infectious TB." ...
Rare Mutation Find May Offer Clues To Treating Osteoporosis
...which involves other genetic abnormalities and may evolve
intoa center for genetic and clinical craniofacial research. "With these families, we have heard all kinds of interesting patienthistories such as kids getting hit in the head with baseball bats and were nothurt even though the bats broke," Wri...
UNC-CH Researchers Discover Key Cancer Control Mechanism
..." the surgeon said. "It looks likethis is going to evolve
into a pretty big deal."...
Caribbean Lizards Evolve Independently
...onary concept known as"convergence", where species evolve
in similar adaptations to the environmentdespite living geographically apart. Although evolutionary convergence has beentaken as evidence for the working of natural selection, the study is unique inshowing that entire communities have converged. Th...
Infant Dependency Drives Menopause, NSF-Supported Researcher Reports
...caretakers of infants, we would expectmenopause to evolve
whenever child-rearing is extensive and prolonged," Packersaid. Packer's co-authors are Marc Tatar, assistant professor in the BrownUniversity department of ecology and evolutionary biology, and Antony Collins, aresearch director at Gombe Str...
New Fossil Discoveries Clinch Ancient Age Of Human Ancestor
... a chimpanzee. "It just shows you that we don't evolve
all at once in every part of our body--we do it in little bits and pieces like a mosaic, depending on which piece natural selection is acting on at the time," he explains. Although some scientists believe that the human family tree is bushy at ...
UB Researcher Developing Method That Employs "Evolution" To Identify New Drug Leads
...emical libraries with the extraordinary ability to evolve
into the best potential drug candidate for a parti... a molecular target, its components naturally will evolve
into the best candidate molecules. "This method employs basic principles of Darwinian evolution," s...
Tiny Jamaican Tree Crab Made Big And Fast Evolutionary Leap, Scientists Discover
...t the two species must have requireda long time to evolve
from their last common ancestor--on the order of 50million years or so. Other scientists thought the tiny crab might, instead,have somehow immigrated from Southeast Asia or Indonesia, where there are somefreshwater species that also care for their y...
New Model Makes It Possible To Predict Emergence Of Antiviral Drug Resistance
...which can be spread through sexual transmission or evolve
naturally duringtreatment. In fact, after 50 years of increased treatment with the drugacyclovir, drug resistant strains accounted for 29 percent of infectious cases.Importantly, the model also identified the most influential factors in theemergence...
Inter-Element Recombination Between Retrotransposons May Be Strategy For
Evolution Of Viruses Like HIV
...elements already present in the genome and thereby evolve
at a fasterrate." The study, with Dr. King...ut how retroviral elements establishthemselves and evolve
withing the host genome. Analysis of the molecularvariation within and between families of retroelem...
UCSF Researchers Identify Molecule Involved In Early Stage Of Atherosclerosis In
...arkedly fewer macrophages, the cellsthat monocytes evolve
into once they are in the vessel lining, were present inthe aortas of these mice, demonstrating that activation of the receptor wasimportant in the recruitment of monocytes into the vessel wall. Co-authors of the UCSF study were Landin Boring, PhD, a...
New Rehabilitative Device Combines Form And Function For Children With Mobility Impairments
...ing costs." The Buddy System also has potential to evolve
into other assistiveproducts. By removing its central pod and adding interchangeable parts,the prone stander can be transformed into an alternative walker or agait trainer (for children who have advanced beyond the prone stander). For the past six mo...
Adaptation's Basis May Be A Mix Of Genetic Tweaks, Whoppers
...hat, faced with environmentalchange, organisms can evolve
through a mix of many minute genetictweaks, a lesser number of moderate changes, and a few majormutations. The new idea runs counter to standard theory onevolutionary genetics, which holds that only the tiniest ofgenetic changes contribute to adaptat...
Lack Of Intestinal Bacterium Linked To Kidney Stones In Cystic Fibrosis Patients, University Of Florida Researchers Report
...wn calcium oxalate before it can form crystalsthat evolve
into kidney stones, he said. Oxalate is found in high concentrationsin many foods, including asparagus, tea, broccoli, peanut butter, spinach andchocolate. When oxalate levels are kept low, it is easier for the body to excrete thesubstance through th...
1 2 3 4 5 6 7 8 9 10