Paula has moderate intellectual disability, a small head and flat face, as well as a protruding tongue. Her condition is MOST likely:

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Quizplus · Accepted Answer

The physical characteristics described (small head, flat face, protruding tongue) are common features of individuals with Down syndrome, which is caused by an extra copy of chromosome 21. PKU involves the inability to metabolize phenylalanine, Tay-Sachs disease is a rare genetic disorder that affects the nervous system, and fragile X syndrome is a genetic disorder that causes developmental delays and cognitive impairment but does not typically present with the specific physical features described.

Paula Has Moderate Intellectual Disability, a Small Head and Flat