"So actually,the message I see coming out of the primaries is that the party base on the Democratic and Republican side is actually fairly satisfied with the people who are representing them.

VOA: special.2010.06.12

What's hanging off of the side of this long molecule that's formed by polymerizing nucleotides are - is this base unit.

在这条由多聚核苷酸,构成的长链分子,一侧悬挂着碱基单位

耶鲁公开课 - 生物医学工程探索课程节选

The 5' carbon has a phosphate off of it and that phosphate is linked to the 3' carbon of the next one and they all have a base hanging off the side.

'碳的磷酸基,连接到下一个戊糖的3'碳部位,它们都有连接在一侧的碱基

耶鲁公开课 - 生物医学工程探索课程节选