Is The Concept Of Prokaryotic Valid And Useful Or Fundamentally Flawed?

1829 Words Oct 27th, 2014 8 Pages
Is the concept of prokaryotes valid and useful or fundamentally flawed?

Since the establishment of the basic concept of classification of organisms by Carl Linnaeus (Encyclopaedia Britannica) and Charles Darwin’s theory of evolution, various ideas and concepts have been suggested. After being repeatedly reviewed by a number of experts, some of them are accepted and this has enabled scientists to classify organisms, to recognise the connections between them despite of different physical appearance and to improve the understanding of evolutionary relationship between them. However, as time goes by and technology develops, the unknown aspects of organisms are being discovered and it arises several controversial points regarding the concepts and the principle of taxonomy. This essay will address one of those controversies, the validity of the concept of prokaryotes.

Humankind needed a guideline in order to comprehend the nature of organisms. For that reason, scientists began to arrange organisms formally into groups called taxa. Ernst Mayr defined taxon as a single taxonomic group of any level that is unique and independent from other groups. (Mayr, 1981) Since then, several diverse hypotheses were suggested and majority of scientists agreed to classify organisms into two major domains, eukaryotes and prokaryotes. At that time, the principle of two domains seemed to be fairly reasonable and was widely accepted amongst scientists. Since then, the same definitions for those two…
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