Formation of Amino Acids etc. 149 



genetic radiations. We already know that if a certain mitogenetic radiation falls 

 on a system which can synthesize the source of irradiation, that source is sja- 

 thesized in that system. So in this dynamic system of proteins and macro- 

 molecules and various compounds, these mitogenetic radiations favour the 

 formation of B more and more. Similarly another protein can proteolyse A, thus 

 favouring the synthesis of A. In this way, the syntheses of many proteins were 

 achieved. 



Such reactions were possible only when the reactants were in the mitogenetic 

 radiation zone. 



As soon as they were removed from that zone, owing to physical reasons, the 

 reactions stopped. This led to the possibihty of still newer reactions, depending 

 upon the type of reactants which were then available. The mitogenetic synthesis 

 by polarized radiation was responsible for the synthesis of asymmetric protein 

 molecules. Thus there was a time when, on the surface of the Earth, the various 

 protein molecules were synthesized. 



AdenyUc acid and nucleic acid were also similarly formed. Of the innumerable 

 compounds synthesized only the compounds which were stable under the then 

 prevailing physical and chemical conditions remained and the others got decom- 

 posed into different compounds. With the new compounds thus formed or the 

 compounds formed by the inter-reaction between the stable proteins, the 

 probabiUty of further reaction remained open. The reactions continued and the 

 chemically fittest only survived. 



Some of these stable compounds combined with adenosine triphosphate which 

 is capable of liberating energy. These molecules, since they had the advantage 

 of being associated with a source of energy, needed lesser activation energy for 

 the commencement of the synthetic reaction as compared to other molecules 

 without any energy source. So, the formation of such molecules has a greater 

 probability. 



But this could not continue for a long time unless these molecules were kept 

 held up together by some force for a long time. In the beginning this type of 

 association might have been possible because of the coacervate stage. But these 

 types of aggregations led merely to the synthesis of molecules. Nucleic acid was 

 also synthesized as described above. This molecule formed the support for the 

 protein molecules. Whenever the latter came in contact with nucleic acid, the 

 system being stable and able to be held permanently together, acquired the most 

 favourable conditions for the synthesis of protein; for, the energy-giving adenylic 

 acid phosphates the proteins to be synthesized and the compounds which helped 

 in the synthesis, were all held together by nucleic acid in a systematic order 

 arranged as the books in a hbrary. 



Thus the system became capable of synthesizing the protein not only easily 

 but also in a systematic maimer, one after the other, depending upon the arrange- 

 ment of the compounds on the nucleic acid skeleton and this system capable of 

 autosynthesis and acting as the preliminary protoplasm made its first appearance 

 on the surface of Earth. The preliminary protoplasm thus formed combined 

 with the various mineral atoms and gradually evolved to the present protoplasm. 



Thus the fundamental five elements 'Kshiti, jala, pavak, gagan, sameera'. 



