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Question

Who proposed the three-domain system of classification?

A
R. H. Whittaker
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B
Carl Woese
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C
Haeckel
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D
John Ray
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Solution

The correct option is A Carl Woese
The three-domain system of classification was proposed by Carl Woese. The three kingdom was named as Archaebacteria, Eubacteria and Eukarya which were later promoted to domains as archaea, bacteria and eukaryotes. This classification was made on the basis of the studies related to the ribosomal RNA genes in these organisms.
Thus, the correct answer is option B.

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