Protein structure is the three-dimensional arrangement of atoms in a protein molecule. Proteins are polymers â specifically polypeptides â formed from sequences of amino acids, the monomers of the polymer. A single amino acid monomer may also be called a residue (chemistry) indicating a repeating unit of a polymer.
Developmental disability is a diverse group of chronic conditions that are due to mental or physical impairments. Developmental disabilities cause individuals living with them many difficulties in certain areas of life, especially in language, mobility, learning, self-help, and independent living.
In their review of the developmental disability literature, Dawson, Matson, and Cherry (1998) focused on individuals who functioned in the severe to profound range of ID based on the notio n that level of cognitive functioning may influence the reasons for the maladaptive behavior (i.