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Tag: "example" at biology news

Science captures the essence of fruit

...nd time-consuming process ?some fruit flavours for example may be comprised of over thirty different compounds, each in a precise volume. "Much of this information is fed back into the breeding programme, allowing naturally-bred new fruit varieties with desired traits to be quickly recognised amongst you...

Smell of success for nanobiosensors

...ajor leap forward' in smell technology and a clear example of a biomimetic devices obtained by converging Nano-Bio-Info technologies. Several hundred different proteins, which the SPOT-NOSED researchers genetically copied from rats and grew in yeast, would be needed for an electronic nose to detect almost a...

Arctic expedition will investigate alien-like glacier

...he expedition, because it likely provides the best example on Earth for the conditions believed to exist on the surface of Jupiter's moon Europa. Ice-covered Europa is considered one of the best candidates for finding evidence of life on other planets within our solar system. Sending a probe to the planet is...

Mapping the protein world

...ish different types of macromolecular objects, for example DNA, and to improve the automated generation of structural models. ARP/wARP has made the life of structural biologists worldwide a lot easier and will do even more so once the new features planned under the NIH grant have been implemented." ARP/wARP...

Scientists reverse evolution

...xa1 and Hoxb1 do today," he says. "It gives a real example of how evolution works because we can reverse it."... called subfunctionalization. "We are giving an example of how it actually happened ?what elements are involved and how you initially separate the functions...

When it comes to gene transcription, random pauses aren’t quite so random, study finds

... transcription is to control pausing. Cancer is an example of gene control gone amuck, so understanding the regulation of genes is critical to understanding cancer. Our results provide fresh insights into the control mechanisms that cells have for regulating the genes they express." ...

First-ever genomic test predicts which lung cancer patients need chemotherapy to live

... chemotherapy. "This new genomic test is a clear example of personalized medicine, where we use the unique molecular characteristics of each patient's tumor to guide treatment decisions," said Geoffrey Ginsburg, M.D., Ph.D., a professor of medicine and co-author of the study. Eventually, physicians will ...

Basic work on E. coli identifies two new keys to regulation of bacterial gene expression

...stablish contact at all," says Gourse. "This is an example of how sometimes less is more, and a probably very ancient example of one of the methods that arose through evolution to regulate gene expression." Ribosomal RNA make...

Heal thyself: Systems biology model reveals how cells avoid becoming cancerous

...ght on the complexity of DNA repair, and offers an example of how the cellular process stimulates other pathways," said David Schwartz, director of the National Institute of Environmental Health Sciences (NIEHS), one of the agencies which funded the study. "This new knowledge has great potential for the dev...

When the going gets tough, slime molds start synthesizing

...ology and Proteomics at Salk, "This is a wonderful example of where egos get pushed aside about who did what and instead, as a scientific community, groups come together to address a fundamental question in biology. In the process, we collectively discovered an efficient chemical factory in Dicytostelium cel...

How ancient whales lost their legs, got sleek and conquered the oceans

...llion years, losing their hind limbs in a dramatic example of evolutionary change. "We can see from fossils that whales clearly lived on land - they actually share a common ancestor with hippos, camels and deer," said team member Martin Cohn, Ph.D., a developmental biologist and associate professor with the...

Toxic molecule may cause most common type of muscular dystrophy

...'s cells. Myotonic muscular dystrophy is the first example of a disease caused by toxic RNA. In 1992, Mahadevan discovered the gene mutation that causes myotonic muscular dystrophy (type 1) as part of a research group in Canada. The mutation is an increased number of CTG repeats in a gene called DMPK. Eve...

Finding a better way to make biodiesel

... so is West Central," Lin said. "This serves as an example of how nanotechnology can be useful for advancing an industry that's not that high-tech. And this allows our students from the Midwest ?some of them from farms ?to learn a new kind of technology that doesn't take them away from home." Larry Breeding...

African parasite makes component of fat differently from all other organisms

...erial enzymes involved in fatty acid synthesis. An example of one is called isoniazid, which currently is used to treat tuberculosis. "Trypanosomes cause significant health problems in remote areas of Africa with poor health care," says Englund. "There is tremendous need for new drugs to cure these disea...

Insect predation sheds light on food web recovery after the dinosaur extinction

...rchers do not know because to date, it is the only example of high insect-feeding diversity on a Paleocene flora. The heavy insect population did not apparently spread from Mexican Hat and perpetuate through time because the same plants at younger sites do not have the feeding associations seen at Mexican Ha...

Researchers map out networks that determine cell fate

...it mixed-lineage patterns of gene expression, for example of both macrophage and lymphocyte genes. "It may be that these cells are stuck in a progenitor-like state," said Singh. "If you could induce them to resolve that state ¡X to differentiate into one or the other cell type ¡X they would cease to be t...

New human retrovirus originated in mice

...nt of view, is that this is the first really solid example of an authentic xenotropic retroviral infection in a human being," said Ganem. According to DeRisi, the Virochip made it possible to analyze these samples without preconceived biases about what viruses might be present. "Since the chip represents ev...

Value of services performed by insects tops $57 billion in US

..." "In fact in many places - crop pollination, for example - the cracks in the infrastructure are already showing," says Vaughn. Using published data, Losey and Vaughan compared the values of each service at current levels of function to theoretical levels if these serves were absent. For wildlife nutrition...

One big biology question solved

...is may allow researchers to improve fertility, for example in the case of an infertile couple wanting a baby, or suppress it, in the case of pest management. Professor Koopman also suggested that an inappropriate retinoid signal might give the wrong instructions to germ cells, which could lead to the forma...

Researchers identify genes in fruitflies that may shed light on human cancer spread

...or identifying key genes ?mutational analysis, for example ?have been successful but generally yield information about genes with unique functions only, and only one gene at a time. Whole genome studies, like the microarray analysis used in this study, allow researchers to identify genes that share similar f...

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