VISEU CAPITAL DA BEIRA NO CORAÇÃO DE PORTUGAL CIDADE DE GRÃO VASCO COM A SUA CATEDRAL IMPONENTE NO ALTO DO MONTE
Radio Viseu Cidade Viriato
terça-feira, 2 de outubro de 2007
A World First: Transparent Frogs
Japanese scientists are claiming a breakthrough after breeding the world's first see-through frogs.
The transparent amphibians are useful for research because the internal organs and blood vessels can be observed without dissecting the animal.
Frogs are often used for scientific projects, but such work has been criticised by animal protection groups in the past.
Transparent fishes are not new, but amphibian specialists say the genetic manipulation has resulted in the world's first transparent four-legged animal.
Professor Masayuki Sumida, who led the team at Hiroshima University, said the frogs' skin had very little pigment as tadpoles.
And the researchers were able to see how the organs grew in the body as they transformed into frogs.
Prof Sumida also said there was still a yellow pigment in the frogs' skin and he was working to breed it out.
He said scientists previously knew that certain recessive genes resulted in pale-skinned frogs.
And second generations of pairs of frogs with recessive genes produced the transparent
offspring.
He added that mammal's skin was different from frogs' skin, so the new breeding methods would not work with mammals.
See The Frogs In Action
Scientists in Japan have breed the world's first see-through frogs. The transparent amphibians are useful for research because the internal organs and blood vessels can be observed without dissecting the frog. There is no commentary on this video.
Watch full screen
Watch in video player page
Subscrever:
Enviar feedback (Atom)
|
Sem comentários:
Enviar um comentário