出典:Wikipedia
出典:『Wikipedia』 (2011/06/25 09:35 UTC 版)
The theory of RNA-based evolution posits that RNA is not merely an intermediate between DNA and proteins, but rather a far more dynamic and independent role-player in determining phenotype. By regulating the transcription of DNA sequences, the stability of RNA, and the capability of messenger RNA to be translated, RNA processing events allow for a diverse array of proteins to be synthesized from a single gene. Since RNA processing is heritable, it is subject to natural selection and contributes to the evolution and diversity of most eukaryotic organisms.