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Best Answer: here are some...meaning: Cleavage in general refers to a division or separation of form. Its usage is heavily dependent on cultural context, where it may refer to: Cleavage (crystal), in mineralogy and materials science, is a process of splitting a single crystal. Cleavage (geology), Foliation perpendicular to stress as a result of ductile deformation. e.g. shales (shists) Cleavage (embryo), in embryology, is the division of cells in the early embryo. Cleavage (fiber), in optical fibers.
Cleavage. Cleavage is a series of rapid cell divisions without cell growth or gene expression which occurs in early embryogenesis. Early cleavage divisions in most embryos are reductive. During cleavage, the cytoplasm is divided into smaller and smaller cells, called blastomeres.The total cellular volume of the embryo stays the same, but the number of cells within the embryo increases. Cleaving cells have a modified cell cycle, in which the two gap phases, G1 and G2, are completely omitted.leavage. Cleavage is a series of rapid cell divisions without cell growth or gene expression which occurs in early embryogenesis. Early cleavage divisions in most embryos are reductive. During cleavage, the cytoplasm is divided into smaller and smaller cells, called blastomeres.