. The organism as a whole, from a physicochemical viewpoint. Biology; Mendel's law. Fig. 10 tration and probably the more so the greater the dis- tance from B; and the same may probably be said for the substances determin- ing mesenchyme and ectoderm formation. Hence the unfertilized egg contains already a rough preformation of the embryo inasmuch as the main axis of the em- bryo and the arrange- ment of its first organs are determined. After the egg is fertilized the cell divisions begin. The first division is as a rule at right angles to the stratification of the egg, each of the two cells c
. The organism as a whole, from a physicochemical viewpoint. Biology; Mendel's law. Fig. 10 tration and probably the more so the greater the dis- tance from B; and the same may probably be said for the substances determin- ing mesenchyme and ectoderm formation. Hence the unfertilized egg contains already a rough preformation of the embryo inasmuch as the main axis of the em- bryo and the arrange- ment of its first organs are determined. After the egg is fertilized the cell divisions begin. The first division is as a rule at right angles to the stratification of the egg, each of the two cells contains one-half of the pigment ring (and of each of A and C) (Fig. 10), and after the next division each contains one-fourth of the pigmented part. Each of the four cells is a diminutive whole egg since each contains the three layers in the normal arrangement (Fig. 11).. Fig. 11. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Loeb, Jacques, 1859-1924. New York, London, Putnam's Sons
Size: 1608px × 1554px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiology, bookyear1916
