Final answer:
Western blotting is a technique used to identify specific proteins in a sample by transferring them to a nitrocellulose membrane and detecting them using antibodies.
Step-by-step explanation:
Western blotting is a technique used to identify specific proteins in a sample. After separating the proteins using gel electrophoresis, they are transferred to a nitrocellulose membrane. The membrane is then exposed to antibodies that specifically bind to the protein of interest, and the bound antibodies are detected using enzymes or fluorophores.