What are the functions of messenger RNA and transfer RNA?
1) Messenger Ribonucleic Acid (mRNA) is a molecule of RNA encoding a chemical “blueprint” for a protein product. mRNA is transcribed from a DNA template, and carries coding information to the sites of protein synthesis: the ribosomes. Here, the nucleic acid polymer is translated into a polymer of amino acids: a protein. In mRNA as in DNA, genetic information is encoded in the sequence of four nucleotides arranged into codons of three bases each. Each codon encodes for a specific amino acid, except the stop codons that terminate protein synthesis. This process requires two other types of RNA: Transfer RNA (tRNA) mediates recognition of the codon and provides the corresponding amino acid, while Ribosomal RNA (rRNA) is the central component of the ribosome’s protein manufacturing machinery. sse picture on the link by clicking on it === http://upload.wikimedia.org/wikipedia/co…
