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(C) The concept of the '$RNA$ World' was proposed because $RNA$ is capable of both storing genetic information and acting as a catalyst. In the $1980s

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Some $RNA$ molecules possess enzymatic properties.

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(C) The concept of the '$RNA$ World' was proposed because $RNA$ is capable of both storing genetic information and acting as a catalyst. In the $1980s$,it was discovered that certain $RNA$ molecules,known as ribozymes,possess enzymatic activity (e.g.,self-splicing introns and ribosomal $RNA$ acting as a peptidyl transferase). This dual functionality suggests that $RNA$ could have been the first self-replicating molecule in the early stages of evolution.

The discovery of which of the following in $1980$ led to the term '$RNA$ World' for evolution?

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