 germ-plasm,' and have assumed that it possesses a highly complex structure, conferring upon it the power of developing into a complex organism. I have attempted to explain heredity by supposing that in each ontogeny, a part of the specific germ-plasm...  The Study of Animal Life - Página 369por John Arthur Thomson - 1917 - 477 páginasVisualização integral - Acerca deste livro
 | Royal Society of Edinburgh - 1890 - 1018 páginas
...germinal plasma (' keimplasma '), which the parental ovum contains, is not used up in the formation of the offspring, but is reserved unchanged for the formation of the germinal cells of the following generation." (2) What is actually continuous is the germinal protoplasm... | |
 | 1913 - 780 páginas
...of Germinal Continuity, the esential doctrine of which is thus expressed:18 In each ontogeny, a part of the specific germ-plasm contained in the parent...formation of the germcells of the following generation. However, the real significance of Weismann 's theory of germinal continuity and its bearing on theories... | |
 | August Weismann, Sir Edward Bagnall Poulton, Selmar Schöland, Sir Arthur Everett Shipley - 1889 - 476 páginas
...a complex organism. I have attempted to explain heredity by supposing that in each ontogeny, a part of the specific germ-plasm contained in the parent...formation of the germ-cells of the following generation. It is clear that this view of the origin of germ-cells explains the phenomena of heredity very simply,... | |
 | 1889 - 564 páginas
...a complex organism. I have attempted to explain heredity by supposing that in each ontogeny a part of the specific germ-plasm contained in the parent...formation of the germ-cells of the following generation.' It may here be noted that, as Wallace * has pointed out, Galton.t some years ago, propounded a very... | |
 | 1890 - 870 páginas
...portion of the specific "germ-plasma" which the parental ovum contains is not used up in the formation of the offspring, but is reserved unchanged for the...formation of the germ-cells of the following generation.' The germ -plasma which keeps up the continuity has its seat in the nucleus, is a substance of definite... | |
 | John Ferguson Nisbet - 1890 - 252 páginas
...substance derived from the parents is not used up in the construction of the body of that individual, but is reserved unchanged for the formation of the germcells of the succeeding generation. This theory seems to explain the curious principle of throwing back, and it... | |
 | August Weismann - 1891 - 512 páginas
...a complex organism. I have attempted to explain heredity by supposing that in each ontogeny, a part of the specific germ-plasm contained in the parent...formation of the germ-cells of the following generation. It is clear that this view of the origin of germ-cells explains the phenomena of heredity very simply,... | |
 | Henry Calderwood - 1893 - 380 páginas
...one he prefers. Weismann's hypothesis is ' that in each ontogeny, a part of the specific germplasm is not used up in the construction of the body of...formation of the germ-cells of the following generation.' 2 According to this view,' the nuclear substance is the sole bearer of hereditary tendencies'; 3 these,... | |
 | 1896 - 844 páginas
...portion of the specific "germ-plasma" which the parental ovum contains is not used up in the formation of the offspring, but is reserved unchanged for the formation of the genii-cells of the following generation.' The germ-plasma which keeps up the continuity has its seat... | |
 | John Arthur Thomson - 1899 - 246 páginas
...contains, is not • (1) "In each development a portion of the specific germused up in the formation of the offspring, but is reserved unchanged for the formation of the germinal cells of the following generation." (2) What is actually continuous is the germ-plasm "of... | |
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