Looking at the uniqueness of each biological form, I assume that the designs of a biological form must be determined by a regulative system coded by certain groups of invariant proteins. The mechanism in charge of combining these proteins in specific patterns to produce design programs I call primordialization. A design program determines the design and the layout of the structures of the organism during its embryonic development. The patterns of proteins' combinations in primordial programs cannot be shifted one into another by environmental factors. If the amino acid sequence of any of the participating proteins is altered, the design program will obliterate. In case such an alteration happens inside an egg cell, one of the two possibilities is expected to occur. Either the affected cell is no longer viable and dies out, or develops into a creature with indistinct body design. Alteration of the proteins involved in a design program can occur also at any time during an organism's development and later. In such situations the affected cells can turn into a cancer cell
