The enzyme, RNA polymerase, is needed to transcribe DNA into mRNA, which is then

Question

The enzyme, RNA polymerase, is needed to transcribe DNA into mRNA, which is then translated into proteins (such as the polymerase). But the genetic code for this enzyme protein is within the DNA. explain how you think a polymerase might have come into existence? Then explain how you think the first polymerase would have been transcribed (and then translated) if there was not yet a polymerase in existence to do the transcribing? I've been trying to understand this or research possible answer for about the last hour with no success.

Explanation / Answer

RNA polymerases have evolved from ribozymes, which are catalytic RNA.

Go back to the hypothesis that states live evolved with RNA as genetic material. RNA also can store genetic information and some them can take place of proteins as enzymes; they can catalyze reactions. RNA polymerases evolved even before DNA. RNA served as genome even before DNA and proteins emerged.

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