Stuttering is a speech disorder characterized by repetition of sounds, syllables, or words; prolongation of sounds; and interruptions in speech known as blocks. An individual who stutters exactly knows what he or she would like to say but has trouble producing a normal flow of speech.
The 3 types of RNA are mRNA is a long strand, the tRNA is shaped  like a clover leaf pattern. The third shape is Ribosomal RNA, it  is a very complex shape.
There are 3 different types of RNA; 1  mRNA-Messenger RNA-This carries information from the nucleus to the ribosomes which are sites for protein synthesis.The coding sequence on the mRNA determines the amino acid sequence in the protein.The mRNA is a straight molecule extends from the 5' to 3' end.