How does RNA affect heredity?
RNA has the ability to store genetic information, while transfer and ribosomal RNA have the ability to translate genetic information into proteins. Some RNA can even act as an enzyme to self-edit their own genetic code. RNA has great capability as a genetic molecule; it once had to carry on hereditary processes on its own. It now almost certain that RNA was the first molecule of heredity, so it evolved all the essential methods for storing and expressing genetic information before DNA.