Explain what differential cell affinity is, how this process is accomplished and why it is important for morphogenesis. Solution Morphogenesis is a process through which the organism develops its shape. The spatial distribution of organs and cells that belong to a specific group is controlled by this process. During the stage of embryonic development, the cells are restricted to particular layers (differential affinity) because all of them are joined by the same adhesion molecules. This homotypic cell adhesion keeps all the cells of similar type intact and form boundaries with the cells with different type of adhesion molecules, thus maintaining the organ’s or tissue’s shape..