問題詳情
【題組】50
(A)Then the view switched to genes.
(B)Life spans are nothing like a trait such as height, which is mainly inherited.
(C)That means it is generally impossible to predict how long a person will live based on how long the person’s relatives lived.
(D)Also, they may be simply chance events, like a randomly occurring mutation in a gene of a cell that ultimately leads to cancer.
參考答案
答案：D
難度：適中0.611111
統計：A(3),B(9),C(9),D(33),E(0)