Some RNA is involved in regulating transcription and mRNA breakdown.mRNA, rRNA and tRNA are involved in protein synthesis.mRNA transfers genetic information from the DNA in the nucleus to the cytoplasm where amino-acids can then be assembled into proteins.DNA is a long molecule unable to leave the nucleus and it contains the information for making about 25,000 proteins so a copy of the information of how to make one particular protein has to be made. The mRNA codes for a single protein and the information then goes to the cytoplasm where the amino acids are assembled.In order for amino-acids to be joined together in the correct order they have to be held on the ribosome which contains rRNA, held in place by tRNA molecules in the order specified by the mRNA.
RNA molecules are shorter than DNA molecules, they are single stranded (although there is some folding in tRNA by hydrogen bonding).After proteins are made the RNA molecules are degraded by hydrolysis of the phosphodiester bond.
RNA molecules are shorter than DNA molecules, they are single stranded (although there is some folding in tRNA by hydrogen bonding).After proteins are made the RNA molecules are degraded by hydrolysis of the phosphodiester bond.