Which feature is associated exclusively with sporadic cancer?

Question

Quizplus · Accepted Answer

Sporadic cancers usually occur as a result of environmental exposure or unknown factors and do not have any observable pattern of inheritance within a kindred, nor do they have an increased frequency within a kindred. At the cell level, mutations through carcinogenesis have occurred, disrupting the normal regulation of cell division, usually among somatic cells. These cancers are not present in higher-than-expected levels within three or more family generations. Although the cause of the cancer is not always known (making primary prevention difficult), there is no genetic predisposition for it.

Which Feature Is Associated Exclusively with Sporadic Cancer