(JANIS JOPLIN - "BALL AND CHAIN") The music ended on Sunday night or,rather,the early hours of Monday, August eighteenth.

VOA: special.2009.08.10

You can just say it's RNA or DNA and you know everything about the pentose in every molecule on the chain.

你只需要说它是一个RNA或者DNA,就能知道,每个核苷酸分子的戊糖

耶鲁公开课 - 生物医学工程探索课程节选