RT Journal Article SR Electronic T1 The great ideas of biology JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 560 OP 568 DO 10.7861/clinmedicine.3-6-560 VO 3 IS 6 A1 Paul Nurse YR 2003 UL http://www.rcpjournals.org/content/3/6/560.abstract AB Four of the great ideas of biology are discussed: the cell as the basic structural and functional unit of life, the gene as the mechanism of heredity, evolution by natural selection, and life as chemistry. A fifth idea is explored whereby biological organisation is explained in terms of logical and informational processes and structures.