Final answer:
Low-set ears may indicate genetic syndromes or developmental disorders and are used as a diagnostic marker in newborns to assess the possibility of such conditions.
Step-by-step explanation:
Low-set ears are commonly associated with genetic syndromes or developmental disorders. This physical trait is often used as a diagnostic marker in newborns and can indicate a variety of possible underlying conditions. Some genetic syndromes that may present with low-set ears include Down syndrome, Turner syndrome, and Trisomy 18, among others. Developmental disorders can also manifest with this feature and may be part of a broader spectrum of anomalies. It's important for healthcare providers to evaluate this characteristic in the context of other physical and developmental signs to determine an accurate diagnosis.