In this lab, 7th grade was able to model the gene dispersal of species into their offspring by flipping coins. Each side of the coins had a single letter written on it, either an uppercase letter or a lower case letter. Each coin represented either a dominate allele (uppercase letter) or recessive allele (lowercase letter) depending on which side it landed on. For example, 2 alleles make up a genotype (I.E. RR or RR or Rr) and there would be two coins with the letter “R” written on each side, however each coin had an uppercase “R” on one side and a lowercase “r” on the other side. Once all of the coins have been flipped, students would organize their alleles which represent specific genes and they would interpret what type of genes were passed on to the offspring. This was a fun way for students to see how genes can be randomly dispersed in the offspring of organisms.