Bounded variation does other external traits like ability to roll ones tongue and eye color affect having a widow's peak hair line? Asked by Ragified 15 years ago 3/13/2010 4:53 AM Last updated by anonymous 12 years ago 1/8/2013 5:48 PM
Traits are only passed along via genetics. Having certain colored eyes does not guarantee that one will have a widow's peak hair line. It's all about genes and their combination (and whether they are expressed or not).
