試題詳解

Few know that family history might be one of the strongest influences on the risk of developing disorders like heart disease and cancer.
(A) Family members share their living environments, lifestyles, and habits; they also share their genes.
(B) Thus, one can recognize family traits like dimples and antithetic abilities; risks for diseases such as diabetes and cancer can also run in families.
(C) Genealogy is the study of families and the tracing of their history by using historical records and genetic analysis to obtain information about a family.
(D) Though we cannot change our genetic makeup, knowing our family history can help reduce the risk of developing health problems.