How To Use Epigenesis In A Sentence
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This literature shows that symbiogenesis, interspecific fusions (hybridogenesis, gene transfers of various types, karyotypic fissioning, and other forms of acquisition of "foreign genomes" or epigenesis) are more important than the slow gradual accumulation of mutation or sexual mergers.
Behe and Gene discuss the Evolution of the Flagellum
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Its "epigenesis" is shown to be a literary example of the phases of cell division, with discussions of its prophase, metaphase, anaphase, and telophase.
The Dream of Mind and Machine
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Yet typically discussions of epigenesis and preformation have focused on individual organisms and their development rather than on species.
Epigenesis and Preformationism
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Yet their experiments ultimately led to new approaches and revised interpretations of what was at issue with epigenesist and preformationist accounts of development.
Epigenesis and Preformationism
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Wolff was an epigenesist, maintaining that form emerges only gradually; Bonnet was a preformationist, insisting that form exists from the beginning of each individual organism and only experiences growth over time.
Epigenesis and Preformationism
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This literature shows that symbiogenesis, interspecific fusions (hybridogenesis, gene transfers of various types, karyotypic fissioning, and other forms of acquisition of "foreign genomes" or epigenesis) are more important than the slow gradual accumulation of mutation or sexual mergers.
Behe and Gene discuss the Evolution of the Flagellum
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Thus, discussions of epigenesis and preformation often bring in other ancillary questions and are difficult to separate from their contexts.
Epigenesis and Preformationism
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He did not assume that an inert and common matter was sufficient for a plausible formulation of a theory of mechanical epigenesis.
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[3] S.A. Kauffman (1971) Cellular homeostasis, epigenesist and replication in randomly aggregated macromolecular systems.
BioMed Central - Latest articles
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Lenny Moss (2003) identifies two gene concepts: the preformationist gene, Gene-P, defined by its relationship to a phenotype, is of instrumental utility for molecular geneticists ” for example, the BRCA1 gene is used to predict breast cancer risk; the epigenesist gene,
The Human Genome Project
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Specification of the primordial germ cells (PGCs) takes place via different strategies across animal phyla; either specified early in embryogenesis by the inheritance of maternal determinants in the cytoplasm of the oocyte ( 'preformation') or selected later in embryonic development from undifferentiated precursors by a localized inductive signal ( 'epigenesis').
BioMed Central - Latest articles
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In epigenesis, the developing organism begins in an undifferentiated state and gradually changes to a more complex state through multiple interactions.
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Epigenesis, as this viewpoint came to be called, held that development was a time of differentiation and maturation in which the organism grew in complexity as well as size.
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Impressed to the point of awe by the precise structural determinateness of all living things, Swammerdam went in fact to the oppo - site extreme of doubting the possibility even of epigenesis.
SPONTANEOUS GENERATION
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The contrary view to epigenesis, namely that the embryo was preformed from the beginning, was championed anew in the late 17th century.
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Chapter 5 introduces their role in development, concluding that epigenesis is really, really complicated.
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Epigenesis and preformation offer two competing interpretations of what is involved, with a range of alternatives in between.
Epigenesis and Preformationism
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But while the wholesale conversion to epigenesis put an end to fictitious accounts of miniature organisms, it brought biologists face to face once again with the old question of how the egg gave rise to a fully formed organism.
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The end of the 20th century brought discoveries that have challenged the most the prevailing geneticism, and have also begun to replace the extreme forms of either preformationism or epigenesist with the sorts of interactionist models that were only offered as outlying alternatives in earlier decades.
Epigenesis and Preformationism