When a genetic counselor looks at a pedigree, HE CAN PREDICT THE POSSIBILITY OF OFFSPRING INHERITING GENETIC DISEASES FROM THE PARENTS.
Some diseases are hereditary in nature, the probability of an individual getting such a disease is higher is his or her parents or grandparents experienced such. By looking at a pedigree, a healthcare provider can estimate the probability of his patient inheriting such diseases depending on the people who have had that disease in the patient's family.
