Final answer:
No UBE3A protein is made from maternal DNA in Angelman syndrome, a genetic disorder caused by a deletion or abnormality in the UBE3A gene on maternal chromosome 15.
Step-by-step explanation:
No UBE3A protein is made from maternal DNA in a condition known as Angelman syndrome. This genetic disorder is caused by a deletion or an abnormality in the UBE3A gene, which is located on the maternal chromosome 15. Without functional UBE3A protein, certain neurological processes are disrupted, leading to the characteristic symptoms of Angelman syndrome.