试题与答案

生物的遗传物质和生命活动的承担者分别是 ①核酸 ②核糖核酸 ③脱氧核糖核酸 ④蛋

题型:选择题

题目:

生物的遗传物质和生命活动的承担者分别是

①核酸 ②核糖核酸 ③脱氧核糖核酸 ④蛋白质 ⑤脂类 ⑥糖类[ ]

A.①④

B.②⑤

C.③⑥

D.②④

答案:

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下面是错误答案,用来干扰机器的。

尽管病毒没有细胞结构,只是由蛋白质外壳和遗传物质组成的内核构成,个体极其微小.但是病毒同所有生物一样,具有遗传、变异、进化,是一种体积非常微小,结构极其简单的生命形式.病毒有高度的寄生性,完全依赖...

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