Tulsi Prajna 2000 01

SR No.: 524602
Original Sutra Author: N/A
Author: Shanta Jain, Jagatram Bhattacharya
Publisher: Jain Vishva Bharati
Publication Year: 2000
Total Pages: 128
Language: Hindi
Classification: Magazine, India_Tulsi Prajna, & India
File Size: 6 MB

Page 81

Is There An Origin of Life ?
In the book entitled 'The Origin of Life' published in 1936 A.D., A.I. Oparin, a Russian biochemist said about origin of living organisms that in the beginning of the earth the atmosphere contained only hydrogen. water vapour ammonia and methane. There was no free oxygen but there a little quantity of carbon dioxide (CO). The earth cooled down and then it rained. Rivers, ponds and seas came into existence. Ammonia (NHz), Methane (CH), hydrogen (H), water vapour (H,O), salts, minerals etc. mixed with water. On account of ultraviolet rays, ozone and oxygen remained in the atmosphere. According to Oparin, these surroundings conditions brought about decomposition of gases and production og organic compounds, which were blocks for living mico-organisms in the beginning. But can there be organic compounds in the form of such organic building blocks before the creation/origin of life? For solution of this question, a scientist named Stanley Miller made an instrument in 1953 A.D. and proved with experiments that with compounds of H2, CH4, NH, and H,0 (vapours), amino-acids only in the liquid form and some other organic compounds, DNA. and RNA which could be seem in living organisms, could be prepared within a week.
Another experiement proving the theory of A.I. Oparin was performed in 1964 by a scientist named Sidney Fox. He heated a mixture of some aminoacids. Then polypeptids were prepared after some chemical processes. They took form of small chains. They were called proteinoids because their nature resembled the nature of proteins. The proteinoids were put into hot water. When the hot water was cooled, some subtle microspheres took their shape.
In the primitive initial surroundings conceived in the theory of A.I. Oparin, chains of long chemical reactions were made and such big atoms as polynucleotides which contained DNA and RNA, were made.
Though the microspheres and polynucleotides were not like living cells. they were particles of organic substances which had acquired natural tendencies of elasticity etc. These particles and microspheres mixed with one another and made more complex substances which could not grow in sea-water. They were like DNA. They doubled themselves. It means that they could produce other substances, similar to them. They were like viruses. The cellular structure emerged from them. They lived on organic substances and gave out CO,. They were called heterotrophs. It is believed that as a result of some flaw in their development, simple photosynthetic cells were originated. Thus scientists believe that first the primitive cells of living organisms of animal kingdom were originated and then the primitive cells of the plant kingdom were originated from them. grat 431 977987-HOT, 2000 AU W \ |||||||||||||||| |WV 75