Biology Define cleavage Asked by bookragstutor 13 years ago 9/10/2012 1:33 AM Last updated by anonymous 13 years ago 9/10/2012 1:33 AM
The process of cytokinesis in animal cells, characterized by pinching of the plasma membrane; specifically, the succession of rapid cell divisions without growth during early embryonic development that converts the zygote into a ball of cells.