Today's Whiteboards: Why You Can't Roll Your Tongue

Some people can roll their tongues into a taco shape.  Others can't.  Some people are pretty tall.  Others are short.  Today's lesson will cover some of the reasons for these alleles.

After a short activity on the evolution of the pocket mouse, we're going to begin chapter 16: Evolution of Populations.

I've got a nifty PowerPoint, but I've also got my powers of whiteboard wizardry.  Below is a snapshot of the whiteboard I'll be using to teach Single Gene Traits (tongue rolling) and Polygenic Traits (height).