An implication of this observation is. that two forms of RNA polymerase lI, differing in their subunit composition, may exist in vivo. The in vivo phosphorylation state of. RNA polymerase II subunits has also. been investigated using the immunopre-. cipitation approach (Fig.
Add your answer. Does a lumbar MRI include imaging of sacroiliac and coccyx area? I just had a MRI and it was for pain in the sacroiliac area (aching pain) and coccyx area (stabbing/pinching pain) so I thought it was weird that it was for lumbar back pain on the order.
Why It Is Done. Magnetic resonance imaging (MRI) of the shoulder is done to: 1  Check unexplained shoulder pain. 2  Find problems in the shoulder, such as arthritis, bone tumors, worn-out cartilage, torn ligaments, torn tendons, or infection.3  An MRI can detect tears in the cartilage (labrum) in the shoulder.hy It Is Done. Magnetic resonance imaging (MRI) of the shoulder is done to: 1  Check unexplained shoulder pain. 2  Find problems in the shoulder, such as arthritis, bone tumors, worn-out cartilage, torn ligaments, torn tendons, or infection.