真核基因mRNA的形成 Transcription Translation Translation stop(TAA start start (ATG) 100 Bases =Intron Polyadenylate TATA 12 Transcription stop Promoter region anscnption 5 3 hnRNA Maturation Poly(A) sequence mRNA AUG UAA B Organization of the B-globin gene真核基因mRNA的形成