What kind of evidence has recently made it necessary to assign the prokaryotes to either of two different domains, rather than assigning all prokaryotes to the same kingdomA) molecularB) behavioralC) ecologicalD) nutritionalE) anatomical

Question

Biology

Coby

24 June, 17:39

What kind of evidence has recently made it necessary to assign the prokaryotes to either of two different domains, rather than assigning all prokaryotes to the same kingdomA) molecularB) behavioralC) ecologicalD) nutritionalE) anatomical

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Answers (1)

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Elisabeth Andrade · Answer 1

A) molecular

Explanation:

Prokaryotes have 70S type of ribosomes. The small ribosomal subunit of ribosomes has some conserved sequences. This subunit is similar in the closely related species. On the other hand, the structure of the small ribosomal subunit is different in the organisms that are distantly related.

Microbiologist Carl Woese analyzed the small ribosomal subunits of some bacteria and Archaeans and found distinct differences. On the basis of the composition of this biomolecule, prokaryotes were divided into eubacteria and archaea.