Complex sentence: In "TBBT", Amy Fowler is a neurobiologist "portrayed as an overly awkward, stereotypical brain", and wears clothing that hides her body and de-feminizes her overall appearance.
Split into simpler sentences: In "TBBT", Amy Fowler is a neurobiologist. Amy "is portrayed as an overly awkward, stereotypical brain" and wears clothing that hides her body and de-feminizes her overall appearance.