Messenger RNA<span> (mRNA) molecules carry the </span>coding sequences<span> for protein synthesis and are called transcripts; ribosomal </span>RNA<span> (</span>rRNA) molecules form the core of a cell's ribosomes (the structures in which protein synthesis takes place); andtransfer RNA<span> (</span>tRNA<span>) molecules carry </span>amino acids<span> to the ribosomes during protein</span>
