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Which genetic material came first in the world, RNA or DNA?

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RNA has great capability as a genetic molecule; it once had to carry on hereditary processes on its own. It now seems certain that RNA was the first molecule of heredity, so it evolved all the essential methods for storing and expressing genetic information before DNA came onto the scene. read more

RNA is the first genetic material that came into existence it's only after mutation in different positions of RNA that DNA came into existence. RNA is a less stable form so there was a requirement of a more stable genetic material so DNA Came into existence. That's why we call the evolution as RNA WORLD. read more

A half DNA ladder is a template for copying the whole. RNA is an intermediary between DNA and protein. DNA words are three letters long. A gene is a discrete sequence of DNA nucleotides. The RNA message is sometimes edited. Some viruses store genetic information in RNA. RNA was the first genetic molecule. Mutations are changes in genetic information. read more

RNA World approach is a possible solution for the evolution of RNA before either proteins or DNA because RNA combines some of the features of proteins and DNA. RNA can catalyze chemical reactions just like proteins, and it can store genetic information just like DNA. read more

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