Frozen accident hypothesis

Frozen accident hypothesis assumes that the formation of the genetic code is an example of a frozen accident (Crick 1968) According to this hypothesis, the genetic code was formed through a random, highly improbable combination of its components formed by an abiotic route. Because of its great evolutionary potential, this system was successful in competition with all the other systems and has survived as the sole universal system to the present day. However, the complicated nature of the proteosynthetic apparatus and the age of our universe mean that there is very low probability of the correctness such a hypothesis.

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The classical Darwinian theory of evolution can explain the evolution of adaptive traits only in asexual organisms. The frozen plasticity theory is much more general: It can also explain the origin and evolution of adaptive traits in both asexual and sexual organisms Read more