阅读下面短文，从每题所给的A、B、C、D四个选项中选出最佳选项。

    Are you looking for something fun? Would you like to help other people in your spare time? Then join us and be a volunteer!

    We are a non-profit organization(非盈利性组织). We have volunteer jobs for people of all ages. Anyone, from twelve-year-old children to people in their 80s, can become a volunteer.

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人体所需能量主要来自糖类（淀粉）的分解．（判断对错）

RNA是生物体内最重要的物质基础之一，它与DNA、蛋白质一起构成了生命的框架．但长期以来，科学家一直认为，RNA仅仅是传递遗传信息的信使．近年科学家发现，一些RNA小片段能够使特定的植物基因处于关闭状态，这种现象被称作RNA干扰（RNA Interference简称RNAi）．近日，分子生物学家发现RNAi在老鼠和人体细胞中也可以“停止基因活动”．根据上述材料回答下列问题：

（1）老鼠细胞的____、 ____、____ 、____ 等结构中有RNA的分布．

（2）RNA使基因处于关闭状态，使遗传信息传递中的____ 过程受阻．

（3）结合上述材料是否可以说“RNA也可以控制生物的性状”？____．说明理由：____ ．