Preparation Required:

Create a set of baggies for the class, using pipecleaners and beads. You'll need lots of white pipe cleaners to represent the autosomes, then pink and blue to match the sex chromosomes. Bead colors can vary, though I tried to get them to match the trait. It's a little work to put together, but I use the same bags year after year. You can mix and match beads by what you can find in the store. I had trouble finding brown beads, which I would have preferred to use for the eye genes (instead of blue and grey)

 

Each male bag will have

1 pink chromosome (pipecleaner)-- purple bead (normal blood)
1 blue chromosome (pipecleaner)-- no beads

1 Long white chromosome -- blue bead (blue eye recessive)
1 Long white chromosome -- grey bead (brown eye dominant)

1 shorter white chromosome -- ivory bead (blonde hair recessive)
1 shorter white chromosome -- red bead (dark hair dominant)

Each female bag will have:

1 pink chromosome -- purple bead (normal)
1 pink chromosome -- clear bead (represents a carrier for hemophilia)

1 shorter white chromosome -- blue bead (blue eye recessive)
1 shorter white chromosome -- grey bead (brown eye dominant)

1 Long white chromosome -- ivory bead (blond hair)
1 Long white chromosome -- ivory bead (blond hair)