Whether you have lobed or lobeless ears is due to genetic causes. Sex is also an inherited variation - whether you are biologically male or female is a result of genes you inherited from your parents.

Inherited from: Mom Is intelligence inherited ... “It is the variants/variation within the coding sequence of the genes that ...

Also the definition is not clear, and many inherited metabolic disorders are yet to be identified, are under-diagnosed, and have considerable variation in age of onset from fetus/neonate to adult.” ...