Titlebook: Germ Line — Soma Differentiation; Wolfgang Hennig Book 1986 Springer-Verlag Berlin Heidelberg 1986 DNA.biology.cell.chromosome.development

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https://doi.org/10.1057/9780230524590ded from the somatic cells. This is achieved by quite different mechanisms. The divergent development of the karyotypes occurs within the germ line (as, for example, in .) or during the earliest development of the organism (as, for example, in .). In ciliates an even more complex sequence of DNA rearrangements is found.

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Book 1986een subsequent generations of multicellular organisms was first suggested by Owen, and later elaborated by A. Weismann to his famous germ line theory. His additional assumption that cellular differentiation was based on a differential representation of the genetic material in somatic cells was soon

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Unusual Chromosome Movements in Sciarid Flies,cently, the family of . has been renamed . (Steffan 1966), but since almost none of the researchers who work with this family have switched over to the new name, I will use the original name of . in this review.

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https://doi.org/10.1057/9781137361820amounts of eu-and heterochromatin, DNA rearrangements during cellular development, or amplification of certain genes may give rise to the existence of nuclei which differ from one another despite their common origin from one zygote nucleus.

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Molecular Reorganization During Nuclear Differentiation in Ciliates,amounts of eu-and heterochromatin, DNA rearrangements during cellular development, or amplification of certain genes may give rise to the existence of nuclei which differ from one another despite their common origin from one zygote nucleus.

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The Differentiation of Germ and Somatic Cell Lines in Nematodes, important problem in developmental biology, i.e., how cells become different during development. Although this review will focus on a discussion of germ line versus soma differentiation, it should be emphasized that the underlying mechanism(s) involved in the differentiation of the divergent somatic cell lines may in principle be similar.

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The Differentiation of Germ and Somatic Cell Lines in Nematodes,iology and has attracted classical and contemporary researchers alike. The process of germ line-soma segregation singles out cells which have to maintain the genealogy and those which build up the individual organism. This event often constitutes the first sign of differentiation in early cleavage s