We have identified null cells aggregate, although poorly, but they are unable to undergo morphogenesis, and the aggregates arrest at the mound stage. up to 105 individual cells to form a multicellular aggregate. The ligand for chemotaxis is extracellular cAMP that activates a series of second messenger pathways through cAMP, G protein-coupled, serpentine receptors that… Continue reading We have identified null cells aggregate, although poorly, but they are