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 this lesson, you will: 1  Define developmental disabilities. 2  Explore the purpose of developmental milestones and review examples of them. 3  Identify different developmental disability types.  Investigate the causes of developmental 1  disabilities. Examine statistics on the prevalence of developmental disabilities.