I was studying Rna World Hypothesis in Khan Academy, and there is a line.....

The RNA world hypothesis suggests that life on Earth began with a simple RNA molecule that could copy itself without help from other molecules.

Here, it's say that "without the help of other molecules" but doesn't enzyme like Rna Polymerase (protein)take part in Rna replication? So what is the meaning of this bold line?

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    $\begingroup$ Try searching for ribozyme or catalytic RNA. That’s the whole mechanistic basis of the RNA World hypothesis. Things were different at first, and they changed later. Read a little more deeply before posting please. $\endgroup$ – David Oct 24 '20 at 19:07
  • $\begingroup$ @David I'd suggest posting as short answer. $\endgroup$ – Maximilian Press Oct 26 '20 at 19:20
  • $\begingroup$ @MaximilianPress — I’m extremely busy at the moment. There are a few questions I’ll answer when I have cleared my desk, assuming they are still active. But I would encourage posters to learn to search the Internet. $\endgroup$ – David Oct 26 '20 at 19:25

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