Origin of Life - Research Article from World of Genetics

This encyclopedia article consists of approximately 4 pages of information about Origin of Life.
This section contains 927 words
(approx. 4 pages at 300 words per page)
Buy the Origin of Life Encyclopedia Article

The origin of life has been a subject of speculation in all known cultures and indeed, all have some sort of creation idea that rationalizes how life arose. In the modern era, this question has been considered in terms of a scientific framework, meaning that it is approached in a manner subject to experimental verification as far as that is possible. Radioactive dating suggests that Earth formed at least 4.6 billion years ago. Yet, the earliest known fossils of microorganisms, similar to modern bacteria, are present in rocks which are 3.5-3.8 billion years old. The earlier prebiotic era (i.e., before life began) left no direct record, and so it cannot be determined exactly how life arose. It is possible, however, to at least demonstrate the kinds of abiotic reactions that may have led to the formation of living systems through laboratory experimentation. It is...

(read more)

This section contains 927 words
(approx. 4 pages at 300 words per page)
Buy the Origin of Life Encyclopedia Article
Copyrights
Gale
Origin of Life from Gale. ©2005-2006 Thomson Gale, a part of the Thomson Corporation. All rights reserved.