Disorder | Description |
Huntington's Disease | Rare dominant allele, breakdown of certain areas of the brain, onset of disease between 30-50, uncontrolled movements, neurological damage |
Phenylketonuria (PKU) | Recessive disorder, lack enzyme that converts phenylalanine to a different amino acid, causes mental retardation, controlled by diet |
Down Syndrome | Trisomy 21, mental retardation, heart defects, distinctive physical features like extra folds in upper eyelids and short stature |
Hemophilia | X-linked recessive disorder; causes blood to slowly clot or not clot at all |
Tay-Sachs Disease | Recessive disorder of central nervous system; fatal in early childhood, sluggish behavior, convulsions, blindness |
Duchenne Muscular Dystrophy | X-linked recessive disorder; degeneration of muscles, progressive muscle weakness, inability to walk, eventually leads to death |
Cystic Fibrosis | Recessive; formation and accumulation of thick mucus in the lungs and digestive tract |
Sickle Cell Anemia | Codominant; red blood cells misshapened, blocks small vessels, reduces oxygen transport, tissue damage and pain |
Turner Syndrome | Monosomy; female who lacks an X chromosome (XO), short stature, wide broad chest, webbed neck |
Colorblindess | X-linked recessive disorder; inability to distinguish between certain colors; most common form is red-green |