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mikael mikael
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13 years ago
Provide evidence that supports the hypothesis that riboswitches are remnants of the RNA world when catalytic RNAs were the only self-replicating life forms.
 
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13 years ago
one focus could be on their presence in bacteria that are considered to have evolved well before Eukarya, yet riboswitches are generally lacking in eukaryotes. If no other life forms were around and RNA was the only replicating form, the function of riboswitches could explain a (primitive) mechanism to control its own synthesis.
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