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Evolution of chromosomes and viruses, derivation of structure

Published online by Cambridge University Press:  17 March 2009

R. Kilkson
Affiliation:
Department of Medical Physics, Karolinska Institutet, Stockholm, Sweden

Extract

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?

Type
Research Article
Copyright
Copyright © Cambridge University Press 1968

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