This material is from the 4th edition of The Zebrafish Book. The 5th edition is available in print and within the ZFIN Protocol Wiki.

Modified from: Kimmel et al., 1955. Developmental Dynamics 203:253-310. Copyright © 1995 Wiley-Liss, Inc. Reprinted only by permission of Wiley-Liss, a subsidiary of John Wiley & Sons, Inc.

Fig. 5. Idealized blastomere number as a function of time after fertilization (at 28.5C), for the time when divisions occur fairly synchronously, before the midblastula transition at the tenth cycle.

Figure 5