And by using these intermediate RNA molecules our cells eventually prevent damage to the DNA molecules. So what types of RNA molecules are found in our cells? Well, the three major components of the RNA molecules of our cells are the messenger RNA, mRNA transfer RNA tRNA and ribosomal RNA or RNA. And we also have trace amounts of other types of RNA molecules as we'll see in just a moment. So let's begin by focusing on these three RNA molecules and let's begin with messenger RNA. Now the messenger RNA molecule is basically the molecule that is eventually used by the ribosomes of our cells to synthesize the proteins in a process known as translation.