. Aspects of the origin of life. Life; Biochemistry; Biochemistry; Biogenesis. A Chemical Theory of Spontaneous Generation 153 pyrimidlnes vitamins etc Nucleic acid Enzymic protein conformed to anabolites Nucleoprotein storing impression of anabolites on protein held in nucleoprotein. daughter cell B Fig. 4. Cyclical biosynthetic, enzymic, and genie process. This diagram pictures the first cell as having been formed in the first operation of the cycle. of the cycle beginning with the appropriate intermediates is then the production of the first cell. Enzyme protein can thus be looked upon as a
. Aspects of the origin of life. Life; Biochemistry; Biochemistry; Biogenesis. A Chemical Theory of Spontaneous Generation 153 pyrimidlnes vitamins etc Nucleic acid Enzymic protein conformed to anabolites Nucleoprotein storing impression of anabolites on protein held in nucleoprotein. daughter cell B Fig. 4. Cyclical biosynthetic, enzymic, and genie process. This diagram pictures the first cell as having been formed in the first operation of the cycle. of the cycle beginning with the appropriate intermediates is then the production of the first cell. Enzyme protein can thus be looked upon as an initiator of ana- bolic reactions in the life history of the new cell and nucleoprotein can be regarded as a device for memorizing the anabolic reactions. These devices can be seen to operate for the first cell in a way similar to that visuaUzed by Beadle for current cells. Although the entire picture presented in this paper integrates many levels and areas of biochemical activity, it is, of course, incomplete. Such problems as primordial fixation of nitrogen, origin of optical activity, membrane formation, and modulation to an aqueous state from an anhydrous one have been or will be treated elsewhere [12, 17]. Unique solutions for other component problems must also be found. As the essential vaUdity of the main thesis is further tested, answers to the other component problems may, however, be expected to appear if the main thesis is correct. Life must have begun without the aid of such special apparatus as we can assemble or obtain today, and the thermal experiments and the interpretations of them continue to provide explanations which suggest answers to additional component problems. One may expect that a final theory will be a unified theory which will explain internally governed generation of the biochemical world, emergence of Ufe, and the evolution of that memory mech- anism of human mentahty which we can reasonably anticipate will eventually solve in full the sahent pr
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