Below is a pedigree for a very rare, late-onset genetic condition. Below the pedigree are represented the RFLP banding patterns obtained for each individual in the family. The RFLP locus used is 2 cM away from the gene responsible for the disease. Note that darker/thicker bands indicate homozygosity for that particular morph of the RFLP.

What is the probability that the child in generation III will develop the disease?