Gastrulation, in some ways, marks the beginning of differentiation in the embryo. The germ layers fraction out further into different structures gradually through development.
Work Step by Step
Gastrulation directs the development of emergent cell properties in embryonic development. Germ layers are formed, which form the beginnings of cell differentiation and the creation of early developmental structures. The ectoderm, endoderm, and mesoderm layers are formed, and these layers go on to additional levels of differentiation that become various parts of the body.