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Tag: "eggs" at biology news

Micro RNAs play role in egg making

...sts compared maturing fruit fly eggs. One group of eggs was missing a gene essential for producing miRNAs, whereas another group of eggs had normal miRNA production. (All plants and animals have DICER, the gene the produces miRNAs, so th...

Elusive salamanders have role in developing new sampling models

..., South Carolina and Georgia. The adults lay their eggs in wetland depressions in the late fall. With winter rains, the ponds rise and the eggs hatch in December, January and February. Larval development lasts through May. The larvae then under...

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...

A vaccine to kill tapeworm

...an happen if people swallow any of the microscopic eggs shed in vast numbers in the faeces of those carrying the adult form. The eggs hatch in the intestine and the immature parasites, known as oncospheres, burrow through the gut wall...

President Bush's cut to AIDS prevention in Africa would be devastating

...olobus (Colobus guereza) and were analyzed for the eggs and larvae of worms and protozoan cysts. The study appears online ahead of publication in the Journal of Applied Ecology. While the three primate species were subject to a higher risk of infections, only the guenons (pronounced GWINN-ins) suffered ...

Affymetrix and ParAllele Launch Industry's Most Comprehensive Product Line for Targeted Genotyping

...olobus (Colobus guereza) and were analyzed for the eggs and larvae of worms and protozoan cysts. The study appears online ahead of publication in the Journal of Applied Ecology. While the three primate species were subject to a higher risk of infections, only the guenons (pronounced GWINN-ins) suffered ...

Logging changed ecological balance for monkeys, damaged health

...olobus (Colobus guereza) and were analyzed for the eggs and larvae of worms and protozoan cysts. The study appears online ahead of publication in the Journal of Applied Ecology. While the three primate species were subject to a higher risk of infections, only the guenons (pronounced GWINN-ins) suffered ...

Researchers devise new technique for creating human stem cells

...SCNT, which involves the use of unfertilized human eggs -- technical hurdles must be cleared before the ne... the case of humans it is very difficult to obtain eggs in any quantity and difficult or impossible to genetically manipulate them," he said. "But embryonic...

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 ...

Gifts from the sea

...e sea urchin can produce as many as a half million eggs during spawning season, and fertilization and embr...iness. Surf clam (Spisula solidissima): Surf clam eggs are popular among scientists studying cell division and the proteins associated with it. Female clam...

Human embryonic stem cells have the potential to develop into eggs and sperm in the laboratory

...to the early forms of cells that eventually become eggs or sperm. Their work opens up the possibility that eggs and sperm could be grown from stem cells and used for assisted reproduction, therapeutic cloning and...

Decisions, decisions: Male or female?

How germ cells decide whether to be sperm or eggs Johns Hopkins biologists have determined how deve...s decide whether to eventually become the sperm or eggs needed later for adult reproduction," said Mark Van Doren, assistant professor in the Department of ...

Invitrogen Launches i-Path -- A Unique Systems Biology Platform at BIO 2005

...um have discovered how to clone human embryos from eggs that have been matured in the laboratory. Their di...es from cloned embryos and develop them to provide eggs and sperm for infertile couples, the 21st annual conference of the European Society of Human Reprodu...

Scientists succeed in cloning human embryos from eggs matured in the lab

...um have discovered how to clone human embryos from eggs that have been matured in the laboratory. Their di...es from cloned embryos and develop them to provide eggs and sperm for infertile couples, the 21st annual conference of the European Society of Human Reprodu...

Discovery of an American salamander where it shouldn't be: Korea

... these nocturnal animals live, breed and lay their eggs on land, they typically are found in areas with abundant rainfall, such as the eastern United States. They are most abundant in North and South America, with one lone outpost in Italy and Sardinia. The Korean crevice salamander is the only lungless s...

First production of human monoclonal antibodies in chicken eggs published in Nature Biotechnology

...erapeutic proteins with enhanced properties in the eggs of chickens as an alternative to established mamma...s with large contributions from the stem cells lay eggs containing milligram amounts of antibody, which is then separated from the egg white proteins genera...

Scripps research scientists identify infertility molecule

...fertility problems. These mice are able to produce eggs normally, so that the eggs can be fertilized, but the resulting embryos, which are otherwise healthy, have problems implanting ...

A whole lot of shaking goin' on triggers early hatching in red-eyed tree frogs

... Panama, red-eyed tree frog embryos still in their eggs are about to make a life-or-death decision. The eg...arrot snake. In a twinkling, the snake tears a few eggs from the clutch. With that bite, the embryos start to wiggle frantically. As the snake moves to tak...

Stem cells in bone marrow replenish mouse ovaries

...velopment and thus are born with a finite stock of eggs that declines throughout life. The new report sign...dence that ovaries of mice can be renewed with new eggs in adulthood. The new study suggests an unexpected source for the progenitor cells that can jumpsta...

Researchers discover key gene involved in bark beetle pheromone production

... because they live almost all of their lives, from eggs to adults, burrowed under thick bark where they are protected. Only for a few hours do they fly from one tree to another to join other bark beetles, mate and start a new life cycle. But other bark beetles know where to locate mates because they are ...

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