Punnet+Squares


 * || T || t ||
 * T || TT || Tt ||
 * T || TT || Tt ||

Above is an example of a Punnett Squares. They can be used to show the possible frequencies of offspring. In the above examples, the parents have the genotypes Tt and TT. The possible genotypes for the offsrping are Tt and TT, as well. Each as likely as the other because they occur twice each.