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.
As far as I can remember, the 3 types are mRNA, tRNA, and rRNA. mRNA is the short term for Messenger RNA. mRNA carries information for the ribosomes in cells. tRNA is short â¦ for transfer RNA. They transfer a specific amino acid to a growing polypeptide chain to the ribosomes during translation.