-from Darwin's
pangenesis theory of inheritance to Weismann's germ-plasm theory to Mendelian and then contemporary molecular genetics
Ek olarak, Darwin'in
Pangenesis teorisine gore, cevresel faktorlerin etkisiyle somatik hucrelerde olusan pangenlerin kan dolasimi ile gametlere ulasmasi, cevresel faktorlerin etkisinin yeni nesillere kalitimini saglayan bir mekanizma olarak ileri surulmustur (2).
Also, Glass discusses Darwin's book
Pangenesis in which Darwin reintroduces the old Lamarckian idea of the inheritance of acquired characteristics.
To explain the source of new genetic information needed to produce the variation on which natural selection could work, Darwin advocated the idea of
pangenesis, which can be traced back to Hippocrates circa 400 B.C.
Darwin's invention: inheritance & the "mad dream" of
pangenesis. American Biology Teacher, 74, 86-91.
Correns asistio al encuentro sin participar activamente y de Vries estuvo ausente de la ceremonia pues, aparentemente, preferia que los motivos de su inmortalidad fueran sus propias teorias sobre la mutacion y la
pangenesis intracelular, y no ser recordado simplemente como el codescubridor de Mendel [11].
With the development of his theory of
pangenesis in 1868, Darwin increasingly turned to the inheritance of acquired characteristics to supply the variation needed for evolution, which inevitably diminished the role of natural selection.
La obra de Maupertuis va a tener notable influencia en Buffon, que le reconoce sus aciertos en la teoria de la generacion, y que de la misma manera intentara proponer una teoria de moleculas organicas (18), que como en aquel, provendrian de una recopilacion de particulas de todo el cuerpo, en una especie de
pangenesis que explicaria la reproduccion de los seres vivos a traves de lo que el denomina el molde interior; una especie de molde tridimensional vivo que permite reproducir estructuras de los organos de los que esta formado un ser vivo (19).
Menstruation is not discussed here, implying that menstruation drew blood from all areas of the female body, in a Hippocratic
pangenesis model, and therefore relieved the entire body.
Instead of parental characteristics making a direct material or causal contribution (as in Darwin's theory of
pangenesis), the appearance of a characteristic in both parent and offspring could be the result of a shared, underlying (transmitted) factor.