The Driving Force in Organic Evolution and a Theory of the Origin of Life

Ecology ◽  
1929 ◽  
Vol 10 (2) ◽  
pp. 167-176 ◽  
Author(s):  
F. H. Pike
Keyword(s):  
Origin Of Life ◽  
Driving Force ◽  
Organic Evolution ◽  
The Origin Of Life

scholarly journals Nuclear geyser model of the origin of life: Driving force to promote the synthesis of building blocks of life

2017 ◽  
Vol 8 (2) ◽  
pp. 275-298 ◽  
Author(s):  
Toshikazu Ebisuzaki ◽  
Shigenori Maruyama
Keyword(s):  
Origin Of Life ◽  
Driving Force ◽  
Building Blocks ◽  
The Origin Of Life

Evolution of chromosomes and viruses, derivation of structure

1968 ◽  
Vol 1 (3) ◽  
pp. 265-308 ◽  
Author(s):  
R. Kilkson
Keyword(s):  
Natural Selection ◽  
Origin Of Life ◽  
Dynamic Process ◽  
Genetic Mechanism ◽  
Organic Evolution ◽  
Evolutionary Changes ◽  
History Of ◽  
The Origin Of Life ◽  
Shed Light ◽  
Scientific Advances

Since the earliest intelligent history man has tried to understand the origin of life. Some remarkable scientific advances have been made. The concept of natural selection is firmly established as the basis of organic evolution. Advances in the genetic mechanism of inheritance have shed light on the processes and levels at which evolutionary changes occur. Evolution is understood to be a dynamic process, and the organisms present at any given time are those best suited to the environment by virtue of the history of their predecessors. But a deeper question arises: how free is evolution? Are the particular biomolecular structures and processes in existence now in any way uniquely predetermined, or are they the result of a sequence of accidental occurrences?

The Tempo and mode(S) of Prebiotic Evolution

1997 ◽  
Vol 161 ◽  
pp. 419-429 ◽  
Author(s):  
Antonio Lazcano
Keyword(s):  
Origin Of Life ◽  
Organic Compounds ◽  
Biological Evolution ◽  
Current Evidence ◽  
Early Diversification ◽  
Time Period ◽  
The Galaxy ◽  
History Of ◽  
Widespread Phenomenon ◽  
The Origin Of Life

AbstractDifferent current ideas on the origin of life are critically examined. Comparison of the now fashionable FeS/H2S pyrite-based autotrophic theory of the origin of life with the heterotrophic viewpoint suggest that the later is still the most fertile explanation for the emergence of life. However, the theory of chemical evolution and heterotrophic origins of life requires major updating, which should include the abandonment of the idea that the appearance of life was a slow process involving billions of years. Stability of organic compounds and the genetics of bacteria suggest that the origin and early diversification of life took place in a time period of the order of 10 million years. Current evidence suggest that the abiotic synthesis of organic compounds may be a widespread phenomenon in the Galaxy and may have a deterministic nature. However, the history of the biosphere does not exhibits any obvious trend towards greater complexity or «higher» forms of life. Therefore, the role of contingency in biological evolution should not be understimated in the discussions of the possibilities of life in the Universe.

Photochemical Evolution of Interstellar/Precometary Organic Material

1997 ◽  
Vol 161 ◽  
pp. 23-47 ◽  
Author(s):  
Louis J. Allamandola ◽  
Max P. Bernstein ◽  
Scott A. Sandford
Keyword(s):  
Origin Of Life ◽  
Building Blocks ◽  
Complex Species ◽  
Infrared Observations ◽  
Interstellar Ice ◽  
Polycyclic Aromatic ◽  
Ultraviolet Photolysis ◽  
The Origin Of Life ◽  
Simple Molecules ◽  
Complex Organic

AbstractInfrared observations, combined with realistic laboratory simulations, have revolutionized our understanding of interstellar ice and dust, the building blocks of comets. Since comets are thought to be a major source of the volatiles on the primative earth, their organic inventory is of central importance to questions concerning the origin of life. Ices in molecular clouds contain the very simple molecules H2O, CH3OH, CO, CO2, CH4, H2, and probably some NH3and H2CO, as well as more complex species including nitriles, ketones, and esters. The evidence for these, as well as carbonrich materials such as polycyclic aromatic hydrocarbons (PAHs), microdiamonds, and amorphous carbon is briefly reviewed. This is followed by a detailed summary of interstellar/precometary ice photochemical evolution based on laboratory studies of realistic polar ice analogs. Ultraviolet photolysis of these ices produces H2, H2CO, CO2, CO, CH4, HCO, and the moderately complex organic molecules: CH3CH2OH (ethanol), HC(= O)NH2(formamide), CH3C(= O)NH2(acetamide), R-CN (nitriles), and hexamethylenetetramine (HMT, C6H12N4), as well as more complex species including polyoxymethylene and related species (POMs), amides, and ketones. The ready formation of these organic species from simple starting mixtures, the ice chemistry that ensues when these ices are mildly warmed, plus the observation that the more complex refractory photoproducts show lipid-like behavior and readily self organize into droplets upon exposure to liquid water suggest that comets may have played an important role in the origin of life.

The origin of life and thinking from the viewpoint of modern physics

2000 ◽  
Vol 170 (2) ◽  
pp. 157 ◽  
Author(s):  
Dmitrii S. Chernavskii
Keyword(s):  
Origin Of Life ◽  
Modern Physics ◽  
The Origin Of Life

The Origin of Life: the Evolution of Viruses, the Simplest Bacteria and the Last Universal DNA Molecule

2020 ◽  
Author(s):  
Volodymyr Bezverkhniy ◽  
Vitaliy Bezverkhniy
Keyword(s):  
Origin Of Life ◽  
Dna Molecule ◽  
Evolution Of Viruses ◽  
The Origin Of Life

Studies on metal photochemistry and the origin of life problem

1971 ◽  
Author(s):  
Robbie Henwood
Keyword(s):  
Origin Of Life ◽  
The Origin Of Life

THE ORIGIN OF LIFE

BMJ ◽  
1912 ◽  
Vol 2 (2711) ◽  
pp. 1692-1692
Author(s):  
H. C. Bastian
Keyword(s):  
Origin Of Life ◽  
The Origin Of Life

A Schematic View of the Origin of Life

1967 ◽  
Vol 101 (919) ◽  
pp. 223-231 ◽  
Author(s):  
Roger G. Hart
Keyword(s):  
Origin Of Life ◽  
The Origin Of Life
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