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Tag: "puzzle" at biology news

Dinosaur DNA? New Patent Covers Degraded DNA recovery

...ory. We now have the picture on the outside of the puzzle box, and by stringing together the pieces of aged DNA, we should be able to reconstruct genes from animals such as the wooly mammoth, giant sloth, saber-toothed cat or even from tissues of the Tyrannosaurus rex that was described last Friday in the j...

Needling Chromosomes Reveals Cell Division Secret

...kills have added a piece to thelarge and intricate puzzle of how one cell divides into two -- aprocess fundamental to all organisms.In the Dec. 14, 2004, issue of Current Biology, Leocadia Paliulis andBruce Nicklas report their progress in understanding how the pairs ofchromosomes in each cell manage to bal...

Researchers identify target for cancer drugs

... Whitehead Institute now have discovered a missing puzzle piece, a finding that may present drug makers with a significant new cancer target. "We believe that we have identified a component that researchers have been looking for since 1996," says Whitehead Associate Member David Sabatini, who is also an As...

Ice core 'dipstick' indicates West Antarctic ice has thinned less than believed

...the same time Siple Dome was thinning. Part of the puzzle has been whether the ice streams were flowing, whether they carried interior ice to the ice shelf at the end of the last ice age, and whether they began where they do now or receded along with the ice shelf's grounding line. Studying the ice core la...

Children's taste sensitivity and food choices influenced by taste gene

...re. Whatever the explanation, this is an important puzzle to solve." Unlike children, bitter receptor genotype did not influence sweet preference in adults. Instead, effects of race/ethnicity were the strongest determinants. Mennella comments, "What I find most interesting is that you do not see the relati...

GeneNotes - A novel information management software for biologists

...formation... and your job is to make sense of this puzzle in a biologically meaningfull way. Applications are being developped to make it all easier, leaving the fun part : biology! GeneNotes is one of them; I didn't have time to try it yet, but it seems like it could help. Nothing revolutionnary judging fr...

Researchers unlock mechanism creating jigsaw puzzle-like plant cells

... grow into interlocking patterns resembling jigsaw puzzle pieces. These proteins tell one part of a cell to...her leads to cells lacking the interlocking jigsaw puzzle appearance. While the researchers unlocked a fascinating mechanism of biochemical crosstalk that co...

A puzzle piece found in unraveling the wiring of the brain

...Medicine in Houston have unraveled a piece of that puzzle by finding a gene that plays a key role in brain wiring. A report on their work appears today in the journal Neuron. "We were surprised to find an exocyst mutant having such specific defects," said Bellen, professor of molecular and human genetics a...

Roots Engage in Underground Chemical Warfare

...r for Ausubel's award, Michael Mishkind said, "The puzzle of why so few bacterial species are pathogens remains a fascinating problem. The simple, yet elegant experimental approaches used by this team uncovered a critical aspect of the battle that occurs between plants and microbes. ...

Scientists discover global pattern of big fish diversity in open oceans

...rst author Boris Worm. "It is like solving a giant puzzle and seeing the night sky in constellations for the... future. The key pieces of the global biodiversity puzzle are still out there, including the physical structures upon which the big fish congregate. There are...

Improved statistical tools reveal many linked loci

...the previously overwhelming computations needed to puzzle together the myriad elements that influence gene expression throughout an entire genome. And unlike earlier approaches to understanding how multiple loci interact, the new technique can distinguish between a group of genes with a linked subset and a ...

The genetic origins of corn on the cob

...ersity. Says Vollbrecht, "We solved this enduring puzzle by combining classical and modern molecular genetics. The former included our use of transposable elements or 'jumping genes'--discovered at Cold Spring Harbor by [Nobel laureate] Barbara McClintock--to 'tag' the ramosa1 gene. That enabled us to isol...

$6.5 Million Grant for Microarray Center at Yale School of Medicine

...ersity. Says Vollbrecht, "We solved this enduring puzzle by combining classical and modern molecular genetics. The former included our use of transposable elements or 'jumping genes'--discovered at Cold Spring Harbor by [Nobel laureate] Barbara McClintock--to 'tag' the ramosa1 gene. That enabled us to isol...

Pinpointing a culprit molecule in Alzheimer's disease

One puzzle in Alzheimer's disease (AD) research is why mice engineered to have the abnormal protein underlying the disease in humans show little pathology of the disease. Specifically, such mice are genetically altered to overproduce mutant human amyloid precur...

New lead reported in tumor angiogenesis

...tutes of Health, have added a key new piece to the puzzle of how tumor cells induce new blood vessels to form and fuel their abnormal growth, a well-known process called angiogenesis. As published in this month's issue of the journal Cancer Cell, the scientists found that in addition to the well-known stra...

'Sinkers' provide missing piece in deep-sea puzzle

.... The global carbon cycle is like a complex jigsaw puzzle with many interlocking pieces. Robison's research may supply a piece of the puzzle that has long been missing. Link to news release on web: http://www.mbari.org/news/news_releases/20...

Defect in gene causes 'neuralgic amyotrophy'

...erp, have uncovered a small piece of the molecular puzzle of this disease by identifying the defects in the gene responsible for this disorder. Neuralgic Amyotrophy, a painful disorder of the nervous system Hereditary Neuralgic Amyotrophy (HNA) is characterized by repeated attacks of pain in a shoulde...

Unweaving amyloid fibers to solve prion puzzles

... varieties of prion strains and piece together the puzzle of how amyloids form. "We now have an overall picture of how prions join together to form the amyloid's molecular structure," says Lindquist, who also is a professor of biology at MIT. Prions are in the business of converting other prion molecules ...

UCSD discovery may provide novel method to generate medically useful proteins

..." protein on the bacteria like a three-dimensional puzzle piece. However, the bacteria are constantly changing the proteins on their surface. To keep up with the unpredictable changes in the prey protein, the phage must generate many different predator proteins for at least one to have an acceptable fit. ...

Lactose intolerance linked to ancestral environment

...reting the data, Sherman noted, was to resolve the puzzle that about 13 lactose-tolerant populations live side-by-side with lactose-intolerant populations in some parts of Africa and the Middle East. "The most likely explanation is nomadism," Sherman concluded. All 13 of the populations that can digest dai...

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