Question

How are self-replicating molecules, such as RNA molecules in the “RNA World” hypothesis, essential to the most popular hypotheses about the origin of life on Earth?

Answer 1

The RNA world hypothesis proposes that self-replicating RNA molecules were ancestor to life, which is based on DNA, RNA and proteins

Answer 2

RNA does the same work as DNA by creating genetic information, and in protein it catalyzes chemical reaction

Answer 3

http://en.wikipedia.org/wiki/RNA_world_hypothesis

Answer 4

thanks @Zale101

Answer 5

no problem, good luck :)

Answer 6

thanks