Epigenesis



[ep-i-jen-uh-sis] /ˌɛp ɪˈdʒɛn ə sɪs/

noun
1.
Biology. the theory that an embryo develops from the successive differentiation of an originally undifferentiated structure (opposed to ).
2.
Genetics. the approximately stepwise process by which genetic information is modified and translated into the substance and behavior of an organism.
See also .
3.
Geology. ore deposition subsequent to the original formation of the enclosing country rock.
/ˌɛpɪˈdʒɛnɪsɪs/
noun
1.
the widely accepted theory that an individual animal or plant develops by the gradual differentiation and elaboration of a fertilized egg cell Compare preformation (sense 2)
2.
the formation or alteration of rocks after the surrounding rock has been formed
3.
alteration of the mineral composition of a rock by external agents: a type of metamorphism

epigenesis ep·i·gen·e·sis (ěp’ə-jěn’ĭ-sĭs)
n.
The theory that an individual is developed by successive differentiation of an unstructured egg rather than by a simple enlarging of a preformed entity.
ep’i·ge·net’ic (-jə-nět’ĭk) adj.

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  • Epigenome

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  • Epigenomics

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