(n.) The theory of generation which holds that the germ is created entirely new, not merely expanded, by the procreative power of the parents. It is opposed to the theory of evolution, also to syngenesis.
Example Sentences:
(1) Here, however, it is shown that a more general version of epigenesis can be held, because of a new principle which states that it is mathematically possible to obtain not only a convergent generation of form, or structure, but also a convergent generation of information.
(2) The study suggests that various second-trimester prenatal disturbances in the epigenesis of one twin in a pair discordant for schizophrenia may be related to the fact that only one of the twins expresses his or her genetic predisposition toward schizophrenia.
(3) A quantitative re-examination was made of the influence of noradrenergic depletion on the epigenesis of kitten visual cortex.
(4) This, the first linear morphometric analysis of the epigenesis of the fetal mammalian adrenal cortex, has shown that in the fetal sheep during the latter two thirds of gestation and in the newborn lamb, there are two periods of rapid growth separated by a period of much reduced growth.
(5) The epigenesis of the different muscles is related to the appearance of their various functions.
(6) Two sequential stages occur: 1) the realisation of an intrinsic programme of maturation, by which cortical specificity appears at eye opening and increases independently of visual experience 2) a phase of "epigenesis" beginning at 19 days, during which functional modification depends on visual experience.
(7) It has been observed that the activity of acid phosphatase does not remain constant, but undergoes changes at different phases of epigenesis.
(8) We report here that functional changes in single neurons of area 17, analogous to those known to take place during epigenesis of visual cortex, can be induced experimentally during the time of recording.
(9) Next, epigenetic influences on synaptogenesis are examined, and later in the article the concept of epigenesis is integrated with that of hierarchy.
(10) A mathematical modeling approach called epigenesis theory is presented which relates three aspects of pathogenesis to the population distribution of disease.
(11) The activity rhythmically becomes higher and lower throughout the whole period of epigenesis.
(12) Both specific epigenesis and specific cell kinetics are involved.
(13) The theory of epigenesis is the undisputed paradigm of embryology, and it is still based on the classical concept proposed by Aristotle: the idea that embryonic development is a generation of structures which takes place according to a design--today we say a set of instructions--already present in the fertilized egg.
(14) Epigenesis theory unifies the sufficient-component causes model and the simple independent action model and exceeds either model in the range of observations it can explain.
(15) Epigenesis theory defines the following multivariable relations between two disease causes: 1) "Complementary" causes contribute different causal actions to the sole pathogenic process leading to disease.
(16) Models of disease causation pertinent to IDDM are presented with a primary focus on the recently developed epigenesis theory.
Epigenesist
Definition:
(n.) One who believes in, or advocates the theory of, epigenesis.