Life Itself: Its Origin and NatureSimon and Schuster, 1981 - 192 pagine A basic book about biology, the origin of life, and the origin of man. |
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Sommario
Times and Distances Large and Small | 19 |
The Cosmic Pageant | 29 |
The Uniformity of Biochemistry | 37 |
Copyright | |
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amino acids asteroid atmosphere atoms bacteria Big Bang billion years ago CALIFORNIA carbon cell chance chemical reactions common compounds copied detail difficult Directed Panspermia distance DNA replication double helix easy energy environment enzymes ERSITY especially eukaryotes evolution evolved exactly fairly favorable fossil galaxy gene genetic code H₂ happened higher hydrogen idea journey large numbers least Leslie Orgel LIBRARY light light-years living system mechanism messenger RNA microorganisms mitochondria molecular natural selection nitrogen nuclear nucleic acid oceans orbit organic molecules Orgel origin oxygen particular Perhaps planetary systems polypeptide chain possible prebiotic present primitive earth probably problem produced prokaryotes radiation rare event reason replication RNA molecules rocket SAN DIEGO scale seems simple small molecules solar system soup space spaceship speed stars started structure suitable planet surface temperature theory thousand tion tRNA UNIV universe unlikely