Question

How would RNA have stored genetic information?

Answer 1

Basically, if you want to store information, you need something like code on encryption.
RNA stores genetic information quite similarly to DNA - encoding it in a nucleotide sequence.
Probably, the fact of the matter is that ancient RNA was successfully serving as a genetic
information storage during the processes connected with the origin of life in the stage of RNA
world. Some organisms now even have a RNA genome, for example, viruses. But the main
mechanism remains the same - genetic information is encoded by a nucleotide sequence.
However, RNA also have many other important functions, which are somehow connected with
genetic information storing, including its role in translation, processing etc.