Which of the following is an EXCEPTION in ectodermal dysplasia?

Ectodermal dysplasia is X-linked (hypohidrotic form, XLHED), NOT Y-linked. Classic findings: anodontia/hypodontia, sparse hair (hypotrichosis), inability to sweat (anhidrosis), dry eyes, and heat intolerance. Y-linked inheritance is the exception — the condition is X-linked recessive, primarily affecting males, with females being carriers.