epigenesis

/ep-i-jen-uh-sis/US // ˌɛp ɪˈdʒɛn ə sɪs //UK // (ˌɛpɪˈdʒɛnɪsɪs) //

表观遗传学,表观遗传,表观遗传学原理,表观遗传因子

Definitions

n.名词 noun

1
- : Biology. the theory that an embryo develops from the successive differentiation of an originally undifferentiated structure.
- : Genetics. the approximately stepwise process by which genetic information is modified and translated into the substance and behavior of an organism.See also epigenetics.
- : Geology. ore deposition subsequent to the original formation of the enclosing country rock.

Rignano calls his theory "centro-epigenesis" and is greatly influenced by Weismann.
The development is an epigenesis, or impressing on identical material of different characters by different surrounding forces.
It is interesting to display the essential contrast between preformation and epigenesis in the poetical words of Wolff himself.
Elsewhere he writes: 'I believe that I have established that ontogeny can be explained only by evolution, and not by epigenesis.'
In fact, the deepest consideration leads us again to the original question: Is embryonic development epigenesis or evolution?