Tiger Lab

Today we did a lab involving dominant and recessive genes in Tigers. The recessive gene in this case was lethal, not having any hair to keep it warm in winter. We had 25 recessive and dominant genes, and randomly “mated” tigers in a bag. As we pulled out pairs of genes, we noted whether they had the dominant gene (HH or Hh) or the recessive gene (hh). As those with the recessive gene died off, the number of h in our society grew very small. However, this number never completely disappeared. This same trend happens in real life, recessive genes can never completely die out, they are just hidden by the dominant genes.

Our final results.