What developmental feature is characteristic of Angelman Syndrome?

Angelman Syndrome is primarily characterized by developmental delays, which manifest as significant delays in both speech and motor skills. Individuals with Angelman Syndrome typically do not develop functional speech and may only produce few words or use non-verbal communication methods. Motor skill delays can include challenges with coordination and balance, which are common in this condition.

The other options do not accurately represent core features of Angelman Syndrome. While excessive weight gain can occur in some children, it is not a defining characteristic of the syndrome itself. Aggressive behavior is also not typically associated with Angelman Syndrome; in fact, individuals often display a happy demeanor and may have behavioral issues that are of a different nature, such as temperamental or hyperactive behaviors, rather than aggression. Severe hearing loss is not a common feature of Angelman Syndrome either, as hearing abilities vary and are not directly impacted by the genetic factors associated with the condition. Overall, the focus on delayed speech and motor skills aligns directly with the hallmark symptoms recognized in Angelman Syndrome.