Well, when I began giving this serious thought in the late 1990 ’ s, molecular biologists were beginning to realize that the chemistry of life is much more elaborate than anyone had previously thought.
طبعا ،‏ لطالما عرفوا ان البروتينات في الخلايا الحية هي اكثر الجزيئات تعقيدا من الناحية الكيميائية .‏