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Tag: "apparent" at biology news

Genome of deadly amoeba shows surprising complexity, evidence of lateral gene transfer

...s, citing the protist's loss of some genes and its apparent gain of other bacterial-like genes through lateral transfer. "This study will provoke interest in what secrets may lie undiscovered in the sequences of other supposedly 'simple' amoeba genomes." Named for its effectiveness in killing other cells, E....

Whole genome fine map of rice completed

...tion history of the rice genome. Eighteen pairs of apparent duplications were discovered, covering 65.7% of the genome. Among them, 17 pairs happened before the divergence of the grasses from other flowering plants. More importantly, the on-going duplications of single genes provided a unlimited source of raw...

Research on Worms Yields Clues on Aging

...anism for theeffect of the anticonvulsants. It was apparent that the drugs did notmimic the anti-aging effects of caloric restriction, because the wormshad abundant food and looked well-fed. The researchers alsodemonstrated that anticonvulsants did not extend life by protecting theworms from pathogenic bacter...

Jumping gene helps explain immune system's abilities

...t have originated from a family of genes whoseonly apparent function is to jump around in genetic material. "Jumping genes" essentially cut themselves out of the genetic material, and scientistshave suspected that this ability might have been borrowed by cellsneeding to build many different proteins from a sp...

UCSD Discovery Shows How Embryonic Stem Cells Perform 'Quality Control' Inspections

...t have originated from a family of genes whoseonly apparent function is to jump around in genetic material. "Jumping genes" essentially cut themselves out of the genetic material, and scientistshave suspected that this ability might have been borrowed by cellsneeding to build many different proteins from a sp...

New therapy for HIV/AIDS eliminates needles and excessive toxicity

...t have originated from a family of genes whoseonly apparent function is to jump around in genetic material. "Jumping genes" essentially cut themselves out of the genetic material, and scientistshave suspected that this ability might have been borrowed by cellsneeding to build many different proteins from a sp...

Gene sequencing explains bioremediation 'bug'

...t have originated from a family of genes whoseonly apparent function is to jump around in genetic material. "Jumping genes" essentially cut themselves out of the genetic material, and scientistshave suspected that this ability might have been borrowed by cellsneeding to build many different proteins from a sp...

Chemists identify immune system mechanism for methamphetamine binges

...ecent studies by others have documented the drug's apparent ability to suppress the immune system, making abusers more vulnerable to diseases such as HIV. The new study is the first to suggest that the drug can engage the body's defense system to attack methamphetamine in such a way that makes users inclined ...

Great White shark evolution debate involves WSU Lake Campus geology professor

...onsters," he explained. His interest in sharks is apparent when entering his office. The door and walls have pictures of shark teeth, and there are posted references to fossils and a geological time table. The research scientist makes imprints of the teeth, then digitizes the picture to establish grids of d...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...ety of other aquatic antics. Suddenly, and for no apparent reason, the four males step away from the water and freeze in unison, as if posing for a group action shot. O'Connell-Rodwell is particularly intrigued by one bull known as Billy Idol, easily recognizable by the extra holes in his large ears. "He's g...

Shutting down the HIV assembly line

...ein. In recent years, Spearman said, it has become apparent that Gag moves to a compartment in the cell called the multivesicular body, or late endosome. In some cell types, Gag and the HIV viral envelope protein form particles in the multivesicular body; in other cell types, Gag makes its way from this site ...

Signs of aging: Scientists evaluate genes associated with longevity

...onounced with advanced age. "We speculate that the apparent metabolic repression in early and mid-life adults contributes substantially to the observed longevity of daf-2," says Dr. Julius Halaschek-Wiener, a researcher at the BC Cancer Agency's Genome Sciences Centre and first author on the study. Another n...

Embryonic Stem Cells Treated With Growth Factor Reverse Hemophilia In Mice: UNC Researchers

...e to remain in the liver and be functional without apparent immunological rejection. This transforms them into possible candidates for cellular transplantation into the liver." Along with Fair, Cairns, Smithies and Frelinger, co-authors from the department of surgery are Dr. Michael A. LaPaglia, Dr. Montserr...

Unlike other mammals, newborn dolphins and orcas stay active 24/7 during first months of development

...main active and responsive after birth has several apparent advantages for newborn cetaceans: Movement and wakefulness reduce danger from predators, help maintain body temperature until mass and blubber insulation develop, allow frequent respiration at the surface, and facilitate rapid growth of brain and bod...

Ancient DNA helps clarify the origins of two extinct New World horse species

.... "I think the biggest issue is that we showed the apparent lack of species diversity in North American horses in the Late Pleistocene - as horses are a poster child of evolution," says Cooper. To explore the origins of the horses, the authors examined mitochondrial DNA (mtDNA) extracted from fossilized hors...

Scientists track stealth DNA elements in primate evolution

...man genome during the past 3-4 million years. This apparent 20-million-year stretch of retrotranspositional quiescence, followed by a sudden outburst of human-specific retrotransposition activity in the past few million years, led Dr. Batzer and colleagues to formulate a new theory for the evolution of Alu el...

A novel virus for croup

...ctions generally; causes that have not always been apparent despite the frequency of such infections amongst children. ...

Beetle-inspired switch uses water for bonding

...ing. Like the transistor, whose varied uses became apparent only following its invention, the uses of the new switch are not yet understood. But the switch's simplicity, smallness and speed have enormous potential, according to the researchers. "Almost all the greatest technological advances have depended...

Lance Armstrong through a physiological lens: hard training boosts muscle power 8%

...." This change in muscle type may account for the apparent ease with which Armstrong seems to be pedaling, albeit at a high cycling cadence. Whereas the lab tests were held constant at 85 revolutions per minute (rpm) for comparison purposes, Armstrong's "freely chosen cycling cadence during time trial races...

HIV Therapy Greatly Extends Life of Key T Cells, Scientists Find

...-2’s effects on HIV disease progression may become apparent only in long-term follow-up, says Dr. Kovacs. Two large, long-term efficacy trials currently underway should provide a clearer picture of the clinical impact of IL-2 on the course of HIV disease and its potential role in the management of HIV-infecte...

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