Tag: "stripes" at biology news
Summer Science: Firefly Babies Advertise Their Bitter Taste, UD Researchers Say
...black patterns on a monarch butterfly or theyellow stripes
on a wasp, are far more typical examples of aposematic display,Tallamy notes. Baby fireflies (Coleoptera: Lampyridae) clearly use light signalsto ward off predators, UD researchers found. This new insight into firefly behavior may serve as an educati...
Electron Accelerator Provides Unique Proof Of Gene Repair Process In Living Cells
...ed the cells through a miniscule grid made of gold stripes
that protected some parts while not others. After .... They found that damaged DNA appeared as distinct stripes
that exactly matched the striped pattern of the gold grid. The scientists also found that one of the...
NYU Researchers Develop Simple, Predictable And Precise Technique For Arranging
DNA Molecules Into Two-Dimensional Crystals
...evenly-spacedstripes at predicted separations; the stripes
in the A-B-C-D structure weretwice as far apart as in the A-B structure, demonstrating the accuracy of themolecular recognition. The authors of the Nature article, entitled "Design and self-assembly oftwo-dimensional DNA crystals" are as follows: Er...
The lie of the tiger
...omputer displays in whichalternating green and red stripes
moved across a screen. The team thensystematicall...ion standstill." The moving objects were not tiger stripes
but a series of computer-generatedmoving red and green color bars. After appropriate adjustment of t...
Bizarre striped rabbit discovered in Asia
... The rabbit, which has distinct, dark brown stripes
running down both itsface and back, a reddish rump, and short ears, was first seen by WCS researcherRob Timmins, who found three freshly hunted specimens in a food market in BenLak, Laos. Tissue samples were then sent to Dr. Diana Bell at the Unive...
New research animals earn their stripes
... that gets its name from prominent black and white stripes
running along its body. Originating in India, the fish are now widely distributed across the world. Zebrafish have been studied by developmental researchers for more than 30 years, and they even have their own website where many details of their bi...
Scientists find gene that fuels 'sexual arms race'
...h male flies engineered to have the same abdominal stripes
as the female melanogaster, the courted females were smitten no less than when confronted with a male flying all the colors of machismo. According to Kopp, what this suggests is that the male is constantly under pressure to evolve something new in or...
Sonic Hedgehog shapes the brain
...ar to the normal source, they produced a series of stripes
that wrapped around the brain like a barber pole. In a further set of experiments, the researchers showed that a spot source of sonic hedgehog turned the arcs into a pattern very much like the eyespot of a butterfly's wing. "What we have found...
Study of poisonous snakes boosts old Batesian principle of mimicry
...g said. Controls were fake "snakes" bearing either stripes
rather than rings or plain brown skin. "These are very exciting results because they show how very strong natural selection is even in areas that are not so far away from each other," the scientist said. Bates made his original observations ab...
Taming chaos? German scientists force checkerboard patterns from turbulence, suggesting better control strategies
...ages of the Science experiment show blue and red stripes
forming tidy, alternating rows, replacing a jumbled array of random turbulence. These colorful images demonstrate a fundamental experiment in control: They reveal how the movement of (red) carbon monoxide molecules can be choreographed-during an oxid...
Method quickly surveys yeast genome by gene function, not sequence
...at identifies the mutants as easily as the varying stripes
of a UPC symbol distinguish brands and sizes of packaged foods. (Mutations in the remaining genes are fatal regardless of environment, so those are not considered.) The genetic barcodes, first reported in 1996, are unique, 20-block...
Physics tip sheet #3 March 6, 2002
...ctivity has received a boost by the observation of stripes
within the charge structure of the common yttrium ...oxide (YBCO) superconductors. The theory says that stripes
of charge protect electric current running between them from disruption, thereby assisting the trans...
One gene, two important proteins
... fly embryo develops in a segmented fashion: seven stripes
containing a protein called "even-skipped" form along the length of its body, dividing the embryo into eight segments. From previous experiments, the researchers knew that a defective STAT92E gene will cause these stripes, and thus the body segments,...
Flying SnifferSTAR may aid civilians and US military
...en thermally released (desorbed) to pass over thin stripes
of coating materials, to which it temporarily sticks. The coating stripes
are located on a quartz surface that vibrates at pre-set frequencies when minute amounts of electric...
Three new South American fish identified
... between their cheeks and gill covers and/or faint stripes
along their bodies. They are colored in variations of iridescent olive green, blue and red. Lopez-Fernandez said the discovery of the new species, which adds to his overall study of cichlid fish, is important as scientists worldwide try to piece to...
Learned social preference in zebrafish
...lly different color patterns, either blue and gold stripes
or an absence of stripes
and a uniform mother-of-pearl color. This difference was the result of a single DNA base change in t...
UCLA researchers recreate patterns formed by mammalian cells
...rm symmetrical and repeated patterns such as zebra stripes
or leopard spots? For the first time, UCLA researc... to the cell culture would change the pattern from stripes
to spots. Without knowing his result, Bostrom added MGP to the cells and found that they indeed pro...