There's mRNA (messenger RNA) which sends messages from DNA to chosen places. (I think of this as a mail carrier and all the mail is from DNA.) There is tRNA (transfer RNA)which moves amino acids to chosen places. (I think of this as a driver of a bus and all of the people that board it are amino acids.) There is also rNA (ribonucleic RNA) which is a RNA component of the ribosome. Hoped I helped!