Indicate true (T) and false (F) statements below regarding the RNA world hypothe

Question

Indicate true (T) and false (F) statements below regarding the RNA world hypothesis( ) is a hypothetical stage in the evolutionary history of life on Earth, in which self-replicating RNA molecules proliferated before the evolution of proteins.( ) In an RNA world, different sets of RNA strands would have had different replication outputs, which would have increased or decreased their frequency in the population, i.e. natural selection.( ) followed the evolution of primitive DNA self-replicating systems( ) Competition between RNA may have favored the emergence of cooperation between different RNA chains, opening the way for the formation of the first protocell.

Explanation / Answer

RNA world hypothesis

( ) is a hypothetical stage in the evolutionary history of life on Earth, in which self-replicating RNA molecules proliferated before the evolution of proteins. (true)

-followed the evolution of primitive DNA self-replicating systems. (True)

-In an RNA world, different sets of RNA strands would have had different replication outputs, which would have increased or decreased their frequency in the population, i.e. natural selection. FALSE

- Competition between RNA may have favored the emergence of cooperation between different RNA chains, opening the way for the formation of the first protocell. TRUE

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