Walk A-way I will identify two traits and describe how they are passed down from parent to offspring. I will inventory some of my traits and compare them with the rest of my class.
People Watching
What visible traits do you see on this child? Traits-Visible Traits What visible traits do you see on this child?
Heredity or Inherited
Bill Nye the Science Guy http://www.youtube.com/watch?v=dPk_V1KkMuU
Gene- Contains information that determines a trait. Dominant- A gene that almost always results in a visible trait. (DD or Dd) Recessive- A gene that does not always result in a visible trait but that may still be present. (dd)
Dominant Recessive Can Roll Tongue Un-attached earlobes Widows Peak Straight thumb Left thumb on top Black or Brown hair Brown eyes Can’t roll tongue Attached earlobes No widows peak Hitchhikers thumb Right thumb on top Blonde Hair Blue eyes