Gastrulation

Multiple Choice

Gastrulation

A) in Xenopus is by simple invagination which results in a new cavity, the archenteron.
B) requires a rapid series of mitotic cell division resulting in asymmetric cells.
C) involves thickening and folding of epithelial sheets, migration of disaggregated cells and apoptosis of random cells.
D) results in the formation of the germ cell layers and body cavities.
E) is not influenced by the structure of the embryo.