There are several things that you'll notice about the struts in this particular cartoon.

你们会注意到卡通模型上的,这些梯阶有些特别之处

耶鲁公开课 - 生物医学工程探索课程节选

I want to start by showing you this cartoon that you already know about with the structure of a double helix.

我想要给你们看这张卡通模型,你们都知道,这是DNA双螺旋结构

耶鲁公开课 - 生物医学工程探索课程节选

The whole structure of a DNA molecule looks like this, going back to a more cartoon version like I showed you before but adding some detail onto it now.

NA分子的全部结构都和,刚才的卡通模型上差不多,但细节更为丰富

耶鲁公开课 - 生物医学工程探索课程节选

This is a feature of DNA shown in this cartoon form, so if you can keep that sort of schematic in mind, it makes it a lot easier to understand the detailed structure.

这是卡通模型所表现的DNA的特点之一,如果你能把这个模型记住,你会很容易理解DNA分子的详细结构

耶鲁公开课 - 生物医学工程探索课程节选

Now remember that there were only four different colors in the cartoon of the DNA double helix that we talked about and I told you that those colors are really - represent the bases but there's five of them here.

现在要记住只有四种不同的颜色,在双螺旋DNA的卡通模型上出现,我们刚说过这个,我告诉你们的这些颜色,它们代表不同的碱基,不过有五种碱基

耶鲁公开课 - 生物医学工程探索课程节选

That's what I want to do for the first few minutes of the lecture here is tell you a little bit about the details of the structure and how molecules fit into this image of DNA that's already very familiar to you.

这是我想要,在这节课最初几分钟告诉你们的,有关DNA结构的一些细节,DNA分子结构与这个卡通模型如此一致,对你们来说很熟悉

耶鲁公开课 - 生物医学工程探索课程节选