In Modern Cells, Proteins Are Known to Bind to RNA

Short Answer

In modern cells, proteins are known to bind to RNA oligonucleotides.Furthermore, the binding is specific, since each oligonucleotide binds only to certain proteins, and changing the sequence of bases in an RNA oligonucleotide can eliminate its ability to bind to a particular protein.This characteristic of RNA oligonucleotides supports the "RNA world" hypothesis that RNA molecules could have acted as _______ in the synthesis of primitive polypeptides.