crossed

It's not all genetic: Common epigenetic problem doubles cancer risk in mice

... genetic mutation into the mix. The IGF2 mice were crossed with mice carrying a mutation in a gene called APC...inting of IGF2. Only the Princeton mice have been crossed with the APC mice. Both the Princeton and the Swedish mice have the extra precursor cells in the lin...

New World founders small in number

...ad out from Africa - descendants of archaic humans crossed the Bering land bridge from Siberia to North America. Several lines of evidence support this model, but that's where the consensus ends and the details are hotly debated. In a paper published in the premier open-access journal PLoS Biology, Jody Hey ...

Road salt affects mitigation wetlands

...90 with the Erie waterfront. A portion of the road crossed the Penn State Erie campus. PennDOT asked researchers if they wanted to use the road building as an opportunity to do research. "PennDOT has really gone out of their way to consider the environmental impact of what they have done," says Silver. "The...

Program finds lost genes in nematode genome

...en annotation. Crossing the tipping point "We've crossed the tipping point with gene prediction where it's becoming clear that machines can beat human annotators and analysts, on average," he said. Because of the increasing speed of computers, the TWINSCAN analysis of C. Elegans is able to use more accura...

Pinpointing a culprit molecule in Alzheimer's disease

...g neural damage. What's more, when the researchers crossed the Ab42 mice with those producing mutant APP, they saw a massive increase in amyloid deposition that was more than the additive effect of the two mutations. The researchers pointed out that test tube studies have shown that Ab42 aggregates more rea...

Delaware scientists make significant advance in study of small RNAs

...aborators," Green said, "the students and postdocs crossed the boundaries of their conventional training. This emulates the goals of UD and DBI for interdisciplinary research, education and economic development." In addition to funding by NSF, the laboratories have received grants from DBI and the U.S. Depa...

Geoscientists follow arsenic from chicken feed to streambeds

What happened to the chicken when she crossed the road is less important that what happens to what she eats when it is used as fertilizer. Organic arsenic is fed to poultry to prevent bacterial infections and improve weight gain. A little bit of arsenic is taken up by the tissue and the majorit...

New class of antibiotics effective against drug-resistant bacteria discovered in fungi

What happened to the chicken when she crossed the road is less important that what happens to what she eats when it is used as fertilizer. Organic arsenic is fed to poultry to prevent bacterial infections and improve weight gain. A little bit of arsenic is taken up by the tissue and the majorit...

FSU biologists describe key role of signal-transcribing gene during cell cycle

... the Notch pathway early developmental signals get crossed may be crucial to future fixes, since mutations to the molecular mechanisms there are linked in humans to specific congenital and later life disorders. "With further study, these findings may aid the development of interventions that target certain ...

Ancient trans-Atlantic swarm brought locusts to the New World

...enon -- in October 1998, a swarm of desert locusts crossed the Atlantic, travelling from Africa to the Caribbean. Using muscle samples taken from the powerful hind legs of locusts, Lovejoy and his colleagues used mitochondrial DNA sequences to reconstruct the evolutionary history of the Schistocerca locust...

Tastier tomatoes in the future?

...r contents both healthy and tasty. The researchers crossed wild tomatoes with cultured ones, then investigated the contents and genetic make-up of the hybrid. The results could allow tomato growers to use wild tomatoes to produce cultured tomatoes with the characteristics they desire (Nature Biotechnology, M...

Researchers release new variety of asparagus

...eld, and disease tolerance. Next, these plants are crossed and the resulting hybrids are evaluated for yield, spear quality and other essential traits. When two parents that produce good hybrid offspring have been identified, a large number of the male and female parent plants are produced by cloning using ...

Unique soybean lines hold promise for producing allergy-free soybeans

...ed lines occur naturally, they can be successfully crossed into other soybean lines "without any biotechnology-derived component," the researchers noted. "Soybeans are slowly but surely increasingly being used in the foods we eat, and with that we are noticing an increase in the number of children and adult...

Trotting with emus to walk with dinosaurs

...ad found that sometimes a dinosaur's tracks became crossed ?that is, the left foot crossing over the right an...oking around as they walk," said Breithaupt of the crossed foot tracks. "Sometimes they stop in mid-stride and look around." Walking theropods appear to have b...

Geneticists discover genes that make fruit fly hybrids sterile

...hen either of these genes is "turned off" and then crossed with the other fruit fly species, the males survive. "We have found the first example of two genes that interact to cause lethality in a species hybrid," said the paper's senior author, Daniel Barbash, assistant professor in Cornell's Department of...

Road-crossing in chimpanzees: A risky business

...ytes verus) at Bossou, Guinea, West Africa as they crossed two roads, one large and busy with traffic, the other smaller and frequented mostly by pedestrians. Adult males, less fearful and more physically imposing than other group members, were found to take up forward and rearward positions, with adult fema...

New culture method for hepatitis C virus uses primary hepatocytes and patient serum

...he University of Washington School of Medicine has crossed this hurdle using a human fetal hepatocyte culture system that was previously developed in his lab. Using this system, his group has demonstrated sustained replication and production of virus particles for at least 2 months, with these virus particle...

Nanotechnology shows promise as next wrinkle fighter

...ht human wrinkles embraces technologies that seems crossed with science fiction ?from microdermabrasians to lasers to Botox injections ? and nanoparticles are poised to join the war by warding off dreaded buckles in human skin. Ilsoon Lee, an assistant professor of chemical engineering, along with Ph.D. s...

Tumor-suppressor gene is critical for placenta development

...ne markers were placed in the Rb gene. When she crossed the two strains of mice, the resulting embryos had the DNA-destroying enzyme and the gene markers in their placenta stem cells. The enzyme removed the DNA between the two markers, leaving the embryos without a working Rb gene in the placental progeni...

Tracking sperm whales and jumbo squid

...f food. The tagged predators and prey must have crossed paths at some time during the experiment, Gilly noted. "Based on the locations of where the squid tags first appeared on the surface, all three squid had to have moved from the Santa Rosalia fishing grounds right through the area where the whales wer...

Ancient genes used to produce salt-tolerant wheat

...t Industry's Dr Rana Munns. "They were unwittingly crossed into a durum wheat line about 35 years ago and are normally not present in any modern wheat." The project began when the CSIRO team used a highly accurate selection method -- based on their understanding of how plants tolerate salt -- to identify ...