Final answer:
Developmental disability syndromes associated with a triple repeat genetic abnormality include Down syndrome, Klinefelter syndrome, and other chromosomal disorders.
Step-by-step explanation:
Developmental disability syndromes associated with a triple repeat genetic abnormality include Down syndrome, Klinefelter syndrome, and other chromosomal disorders. Down syndrome is caused by an extra copy of chromosome 21, resulting in intellectual disability and physical deformities. Klinefelter syndrome occurs when a male inherits an extra X chromosome and is characterized by underdeveloped sex organs and learning difficulties.