When constructing a pedigree around a specific health problem,what is the minimal number of generations needed to accurately assess the presence or absence of a genetic factor in disease development?

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At least three generations are needed to accurately assess the presence or absence of a genetic factor in disease development. The first generation provides information on the affected person, the second generation provides information on the parents of the affected person, and the third generation provides information on the siblings and offspring of the affected person. A greater number of generations can provide even more information, but three is the minimal amount needed.

When Constructing a Pedigree Around a Specific Health Problem,what Is