1 A hematoma is a collection of blood outside of a blood vessel. 2  Symptoms of hematomas depend upon their location and whether adjacent structures are affected by the inflammation and swelling associated with the bleeding.
What is RNA? Ribonucleic acid, or RNA is one of the three major biological macromolecules that are essential for all known forms of life (along with DNA and proteins). A central tenet of molecular biology states that the flow of genetic information in a cell is from DNA through RNA to proteins: âDNA makes RNA makes proteinâ.
RNA polymerase is the enzyme that assembles the individual nucleotides to create the RNA strand based on the DNA template. The RNA that is built here can actually be one of three different kinds. You may recall that the three different RNA types are mRNA, rRNA and tRNA. The type that we're concerned with here is mRNA.The 'm' stands for 'messenger,' because this type of RNA serves as a messenger to carry genetic information from the nucleus to the cytoplasm.ranscription is the copying of genetic information from the form of DNA to the form of RNA. Remember that RNA is a single-stranded molecule; it doesn't have a complementary strand like DNA does. It's only half a ladder, or a single strand of nucleotides.