Thanks, but according to a number of sources (e.g., http://udel.edu/~mcdonald/mythintro.html
), the earlobes and tongue curling are not valid examples. Also, the eye color Punnett square doesn't work in the simple version (e.g., http://genetics.thetech.org/how-blue...-eyed-children
). This is only a basic stats course, but I don't want to end up teaching incorrect biology. Any clearer examples?