Titlebook: Experimental Studies of Amphibian Development; Ernst Hadorn Textbook 1974 Springer-Verlag Berlin Heidelberg 1974 Regeneration.biology.cell

SLAG

From One Cell to Many,then does a multicellular animal emerge from just a single cell? What kind of distribution of the information in the genetic material takes place? How is it that one cell becomes a nerve cell and another a gland cell?

scotoma

RADE

instances, been incorporated into the text. Furthermore, we have tried to explain some of the experiments, and their possible interpretations, in a more precise way. I am very grateful to Dr. David Turner; in addition to translating the text, he was able, thanks to his experience in developmental bi

臭了生气

标准

PRE

delta-waves

猛然一拉

,Fortsetzung oder Neuschöpfung?,anges, switching the mating instincts into the female pattern. Such a “.” can be mated with a normal male and out of this unusual union of two genetically male animals, normal offspring can emerge and grow to maturity.

Microaneurysm

强有力

Fertilization of the Egg,ubstances (fertilizins) which affect the sperm, changing their surfaces in a way which enables them to penetrate the egg. But no one has been able to demonstrate that these egg substances directly attract the sperm. Indeed, within the animal kingdom such a chemotaxis (p. 104) has been proved only in the case of the marine hydroid ..