these pentose molecules, whether it's ribose or deoxyribose, the carbons are numbered the same 1', 2', 3', 4', 5', those are the five carbons that make up the pentose.

这些戊糖分子,不管是核糖还是脱氧核糖,碳都是从1'标注到5',也就是构成戊糖的5个碳原子

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This is important because this molecule here, deoxyribose, is not the same upside down as it is - it's not symmetrical upside down and right side up, it's different because the 5' carbon's either pointed up or pointed down.

这很重要,因为对脱氧核糖来说,不都是像这样自上而下的,不是对称的自上向下或全部向上的,长链不同是由于,5'碳向上或者向下的指向不同

耶鲁公开课 - 生物医学工程探索课程节选

Every unit in the backbone of this ladder has the same sugar unit, the same pentose; it's either RNA or DNA and has ribose or deoxyribose, so you don't need to describe the whole thing.

主链的每个单位,都由相同的糖单位构成,同样的戊糖,RNA里是核糖,DNA里是脱氧核糖,所以你不需要所有细节都描述

耶鲁公开课 - 生物医学工程探索课程节选