問題詳情
20．原核生物的mRNA通常在转录完成之前便可启动蛋白质的翻译，但真核生物的核基因必须在mRNA形成之后才能翻译蛋白质，针对这一差异的合理解释是
(A)原核生物的tRNA合成无需基因指导
(B)真核生物tRNA呈三叶草结构
(C)真核生物的核糖体可进入细胞核
(D)原核生物的核糖体可以靠近DNA
(A)原核生物的tRNA合成无需基因指导
(B)真核生物tRNA呈三叶草结构
(C)真核生物的核糖体可进入细胞核
(D)原核生物的核糖体可以靠近DNA
參考答案
答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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