Tag: "eggs" at biology news
Why are birds' eggs speckled?
are unique in their diverse pigmentation. This div...f these patterns was unknown. Most passerines lay eggs
speckled with reddish protoporphyrin spots forming a ring around the egg's blunt end, on an otherwis...
Emerald Spectre haunts Ontario's ash forests
...eading with a little human help. Adult beetles lay eggs
under tree bark and the feeding larvae kill trees by disrupting the flow of nutrients in the soft tissues under the bark. The new study funded by the Natural Sciences and Engineering Research Council of Canada (NSERC) reveals that unprecedented actio...
University of Kentucky awarded $6 million for GDNF and related research
...ues are applying the old maxim "don't put all your eggs
in one basket," to the newest science imaginable. "History is riddled with examples of technology that failed more than once before being perfected. The Wright brothers crashed a few airplanes. GDNF has not failed so spectacularly, although we still ...
Hanging baskets of sex and death help fruit growers
...real moth. This results in direct contamination of eggs
laid by the pest or contamination of the site where the moth lays its eggs. The larvae are killed after eating the virus on the egg or plant surface. This brings two key benefits to fruit growers: An end to spraying Normally Growers wishing to use t...
Study in Royal Society journal on first observation of giant squid in the wild
...s. In field and laboratory, females avoided laying eggs
on plants bearing live caterpillars. The same res...or example, that sperm could only leave storage if eggs
were available to be fertilized. We used fruit flies to this idea. We found, surprisingly, that sper...
It's a bug's life: MIT team tells moving tale
...the water? "There are many reasons, such as laying eggs
or escaping predators," said Hu. Menisci are all around us -- picture the slight upward curve of water in a glass where it meets the side. "But we don't notice them because they're so small, only a few millimeters in height," said Hu. But if you're a...
Looks matter to female barn swallows
...d laid their first set of eggs, Safran removed the eggs
so that the females would mate again. Before the females chose their mates for their second nest, Safran captured the males and randomly assigned them to one of three treatments. She either painted their throats, breast and belly feathers with a red ...
Fish in ponds benefit flowering plants
...e, there is evidence that dragonflies avoid laying eggs
in ponds with fish. Knight noted that many organisms, for instance, salamanders, with terrestrial life stages also are key aquatic predators, so the reverse a cascade from terrestrial to aquatic ecosystem also is true. "This finding will open up ...
Reconstructed 1918 flu virus providing insights for potential pandemics
...death. 2) It is pathogenic in embryonated chicken eggs
3) It grows very rapidly in human lung cells. All three of these are in contrast to most flu viruses that infect humans. These generally are not pathogenic in other species and grow significantly slower in human lung cells. REVERSE GENETICS Mount...
Rhythm gene discovered
...c events in a worm's life: swallowing food, laying eggs
and pooping. If the gene is disabled, the wor...very seven seconds during ovulation, squeezing out eggs
so they can be fertilized by sperm. The intestines, which must pressurize and then release so the ...
Egg's energy stores key to preserving fertility
...When the Duke team "fed" the simple sugars to frog eggs
and oocytes, they shut off apoptosis. Conversely, preventing eggs
from metabolizing these sugars and using the molecular pathway quickly prompted cell death, the rese...
Advancing saltwater fish farming
...sful production in tanks of millions of fertilized eggs
and thousands of healthy young fish on their way to market weight. This project involves acclimating pompano, a saltwater species, to thrive in freshwater, which is easier and cheaper to maintain at an industrial scale. Michael Rubino is the National...
Scientists unpick genetics of first 15 minutes of life
...ene in the maternal (mother's) genome explains why eggs
fail to produce a zygote or early embryo - despite the presence of 'healthy' sperm. Although the researchers use the fruit fly Drosophila melanogaster to discover the basic genetic processes of sex, the same genetic processes are present in all sexu...
UW scientists report a new method to speed bird flu vaccine production
... its virulent nature - can be seeded into chicken eggs
to generate the vaccine used in inoculations, which prepare the human immune system to recognize and defeat the wild viruses that spread among humans in an epidemic or pandemic. In their report, a team led by UW-Madison virologists Yoshihiro Kawaoka ...
Studies throw light on biomarkers which predict the subsets of patients where gefitinib has the greatest benefit
...n germline (inherited material that comes from the eggs
or sperm and is passed on to offspring) EGFR variants and overall survival with gefitinib. Investigators identified an association of common germline EGFR promoter single-nucleotide polymorphisms (SNPs, common, but minute, variations that occur in ...
Removing egg from nest may help save endangered whooping crane
...od Buffalo National Park one of two whooping crane eggs
laid and raising it in a "foster-parenting" progra...hanced by the egg removal program but removing the eggs
has allowed the establishment of additional populations like those in Wisconsin and Florida, and a s...
UF study first to quantify validity of DNA I.D. tool using marine snails
...ine." And because the technology also can identify eggs
or other different life stages it could be used to..., Meyer said. "A border guard may come across some eggs
or larvae in an orange shipment and wonder if they are from a dangerous fruit fly or something else ...
Russian River coho recovery project seeing first hopeful signs of success
...ng current until they're ready to be harvested for eggs
and milt during December. "The circular tanks provide more depth and a greater volume of water for each fish," Conrad said. "The circular flow pattern creates superior rearing conditions that enabled our spawners to grow to a larger size. The larger ...
Learning about sex from an elegant worm
...t once, as nonsex cells do), resulting in sperm or eggs
with just one set of chromosomes each. Now resear...s, to ensure that the chromosomes of its sperm and eggs
have been matched and recombined accurately during meiosis. Their discoveries hold promise for under...
Fertility genes discovered at Rugters
...are young they produce sperm and switch to produce eggs
as adults. The Rutgers researchers were thus able to alter eggs
in the hermaphrodites and use sperm from young males to test fertilization. Genetic tools such as R...
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