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Which of the Following Is True Regarding Heredity and Longevity

Question 75

Multiple Choice

Which of the following is true regarding heredity and longevity and health?


A) Twin studies show that illness rates in siblings do not have a genetic component.
B) Of those whose parents died before 78,40% had a chronic illness at age 65.
C) Of those whose oldest grandparent had lived past 90,only about 2% had a chronic illness at age 65.
D) Identical twins are more similar in longevity than are fraternal twins.

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