Tag: "morphological" at biology news
Picking particles faster than one at a time
...e says that being able to model the whole range of morphological
and functional changes in cellular constituents, from the microscale (millionths of a meter) to the nanoscale (billionths of a meter), comes ever closer to reality....
Scientists fetch useful information from dog genome publications
...cus. In the book's 26 chapters, dog experts cover morphological
and behavioral variation in dogs, their origins and domestication, and characteristics of their genome. Chapters are devoted to discussing the genetic basis of canine diseases, as well as health initiatives aimed at curing diseases in dogs by approac...
Stanford evolution research cited by Science as a 2005 breakthrough
...arate populations. "Our work shows that even major morphological
changes are controlled by relatively simple mechan...argued that it would be impossible to evolve large morphological
changes in natural populations. "That is obviously false," said Kingsley, who is also a Howard Hughe...
Study reveals classic symbiotic relationship between ants, bacteria
...ungus-growing ants are very well studied, yet this morphological
characteristic went unnoticed until now. What other organisms might be taking advantage of this type of association? What don't we know about other systems that are not as closely studied as these ants?" Currie's collaborators include Michael Pouls...
Sex: It's costly but worth it. Just ask a microbe
...Master University, found that sex exacts physical, morphological
and behavioural stress on microbes. His findings are published in the recent edition of Genetics, published by the Genetics Society of America. "There was always an assumption that microbes reproduce asexually, but they are actually asexual and sex...
Three new species of lemurs identified
...graphical areas. They had not been identified from morphological
differences or chromosome profiles the methods us...ic areas, separated by rivers, but show no obvious morphological
Tips from the journals of the American Society for Microbiology
...oximately 90%. "The findings of this study provide morphological
and histological evidence that topically active cimetidine is a potent inhibitor of P. gingivalis-elicited periodontal inflammation, arresting and/or preventing tissue destruction and influencing cell populations present in the inflammatory cell infi...
How the octopus forms an elbow
...Nonetheless, despite the huge evolutionary gap and morphological
differences between the octopus and vertebrates, the octopus arm acts much like a three-jointed vertebrate limb when the octopus performs precise point-to-point movements. Researchers have now illuminated how octopus arms are able to form joint-like ...
New groundbreaking findings in taste, smell and chemical irritation
...other means, in addition to molecular, synaptic or morphological
alterations within individual cells, by which the brain can make changes to its own functional circuitry. Indeed, this cell-level renovation is not static or merely restorative; instead, adult neurogenesis constitutes an adaptive response to challeng...
Evolution reveals an independent route for diversity in animal form
...al process that directs the formation of different morphological
features along the anterior-posterior axis--the ax...f metazoan animals. Knowing this, the spectacular morphological
diversity in Cnidaria comes as a surprise. The Cnidaria is one of the most diverse and species-rich ...
A 'Guinness book' of biological records
...es have shown that students' questions are usually morphological
in character, involving properties such as body size and weight. The tables presented here were compiled to put an end to the time-consuming search for such data. None of those figures or superlatives that might seem exotic to the layman is left ou...
Selectively blocking inflammatory signals may protect mice from MS
...ssion of SOCS1 protects mice from the clinical and morphological
consequences of IFN-gamma expression in the central nervous system during development." "We found this tremendously encouraging," said Popko. "SOCS1 prevented or reduced the harmful effects of interferon gamma on myelin-producing cells. This study ...
Scientists describe new African monkey genus first in 83 years
...ures of the specimen do not exhibit the diagnostic morphological
features of baboons: namely, a long rostrum or dee...d geladas. Given the results of the molecular and morphological
analyses, the team placed Kipunji in its own genus Rungwecebus, named after Mt. Rungwe where Kipunji...
Chimpanzee study reveals genome variation hotspots
...are potentially involved in the rapid evolution of morphological
and behavioral characteristics that are geneticall...what they're involved in and what they mean from a morphological
variation and disease standpoint." Specifically, the study of the processes that lead to variations ...
How ancient whales lost their legs, got sleek and conquered the oceans
...is growing tapestry of how genetic changes lead to morphological
change. It is a remarkable process that was achieved simply and led to profound consequences in how whales were able to survive. Only now in the last five years are we developing this understanding of how the world of evolution is controlled genetica...
Zebra finch males prefer females with exaggerated maternal traits
...ive the evolution of exaggerated traits and strong morphological
differences between sexes phenomena seen frequently in birds and other animals. The findings are reported by Carel ten Cate, Machteld Verzijden and Eric Etman of Leiden University, and appear in the June 6th issue of Current Biology. In most bird s...
Gorilla susceptibility to Ebola virus: the cost of sociality
...400 gorillas were identified from their individual morphological
characteristics. Ebola virus affected this population in 2004. During and after the outbreak, the researchers used the data on the identity of animals previously observed to estimate Ebola-induced mortality and to test the validity of different possi...
UCR researchers determine genetic origin of California wild radish
...charlock from outside of California. After doing a morphological
study of the three types of plants, they performed modern population genetic analysis, using a sophisticated analytical tool developed in the last five years to determine the radishes' genetic makeup. "We found that wild radish in California has n...
Islands spark accelerated evolution
...mmals respond to their new island homes with rapid morphological
and size adaptations. The brisk pace of these changes may explain why the fossil record harbors few examples of intermediate forms between the mainland ancestor and island descendant. Millien's results are also consistent with the hypothesis that evo...
Field Museum receives $5 million grant from the Grainger Foundation
... scientific issues, including: evolution from both morphological
and molecular perspectives, the origin and development of complex societies, climate change and biogeography. The Fund for Science will support novel, exploratory research programs to uncover new fields of scientific endeavor and test hypotheses new...
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