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 three main types of RNA: 1  Messenger RNA (mRNA) transcribes genetic information from the DNA found in a cell 's nucleus, and then carries this information to the cell's cytoplasm and ribosome. 2  Transfer RNA (tRNA) is found in a cell's cytoplasm and is closely related to mRNA as its helper.raits (phenotypes) come from which proteins are made and which are switched on or off. The information found in DNA determines which traits are to be created, activated, or deactivated, while the various forms of RNA do the work.