This page outlines embryonic development in animals, which includes four stages: Cleavage (rapid cell division of the zygote), Patterning (cell organization and body axis establishment), Differentiati...This page outlines embryonic development in animals, which includes four stages: Cleavage (rapid cell division of the zygote), Patterning (cell organization and body axis establishment), Differentiation (activation of zygotic genes for specific cell types), and Growth. It emphasizes the transition from maternal mRNA to the embryo's genome. Research on frogs and snails illustrates the significance of mRNA distribution and protein gradients during early development.
