SLAG
发表于 2025-3-23 13:43:56
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
发表于 2025-3-23 17:42:04
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RADE
发表于 2025-3-23 20:44:22
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
发表于 2025-3-24 00:11:07
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标准
发表于 2025-3-24 04:04:06
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PRE
发表于 2025-3-24 08:48:35
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delta-waves
发表于 2025-3-24 12:55:47
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猛然一拉
发表于 2025-3-24 16:21:47
,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
发表于 2025-3-24 22:59:45
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强有力
发表于 2025-3-25 01:00:56
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 ..