Question

How many base self-replicating RNAs have been made? Can some of them copy other RNAs with more bases than themselves?

Answer 1

Self-replicating RNAs include ribozymes, ribonucleoprotein structures, and retroviruses. In an in vitro study, replicating ribozymes became more efficient at replicating longer and more complex RNAs over time.

Step-by-step explanation:

Ribozymes, ribonucleoprotein structures, and retroviruses are examples of self-replicating RNAs. In an in vitro evolution study, replicating ribozyme polymerases in a test tube became more efficient at replicating longer and more complex RNAs over time. So, yes, some RNAs can copy other RNAs with more bases than themselves.