Centenarians __________.
A) are more likely to be male than female
B) are less likely than other older adults to have all or most of their own teeth
C) have a high incidence of genes associated with immune-deficiency disorders
D) usually have grandparents, parents, and siblings who reached very old age

Question

Quizplus · Accepted Answer

The statement "usually have grandparents, parents, and siblings who reached very old age" is consistent with the concept of familial longevity, in which the presence of long-lived relatives is associated with increased likelihood of reaching a very old age. A and B are incorrect, as centenarians are typically more likely to be female and have better oral health compared to other older adults. C is also incorrect, as centenarians have been found to have genetic variations associated with a better functioning immune system.