The ALLELE Procedure
The polymorphism information content (PIC) measures the probability of differentiating the allele transmitted by a given parent to its child given the marker genotype of father, mother, and child (Botstein et al. 1980). It is computed as
![\[ \mbox{PIC} = 1- \sum _{u=1}^ k \tilde{p}_ u^2 - \sum _{u=1}^{k-1} \sum _{v=u+1}^ k 2\tilde{p}_ u^2\tilde{p}_ v^2 \]](images/geneug_allele0043.png){kind=small}
The heterozygosity, sometimes called the observed heterozygosity, is simply the proportion of heterozygous individuals in the data set and is calculated as
![\[ \mbox{Het} = 1 - \sum _{u=1}^ k \tilde{P}_{uu} \]](images/geneug_allele0044.png){kind=small}
![\[ \mbox{Div} = 1- \sum _{u=1}^ k \tilde{p}_ u^2 \]](images/geneug_allele0045.png){kind=small}