Does Everyone Have Earlobes?

Your teacher and just about everything on the web says that parents with attached earlobes can't have kids with unattached ones. And they're all wrong. Most everyone presents ear lobe attachment as a very simple trait.

Are attached earlobes rare?

Attached earlobes are not rare but are also not commonly found. Earlobes of such type are small in size and are attached directly to the side of the head. ... The recessive allele is expressed to form an attached earlobe.

What percentage of the population has attached earlobes?

The attached earlobe was common (50.0% males and 56.3% females for the left ear; 53.3% males and 58.6% females for the right ear) among both sexes in the studied population.