Chegg ome antibiotics such as inhibits DD-transpeptidase (DD-TP), which provides 5xGly bridges links between peptidoglycan chains to form the rigid bacterial cell walls, through covalent modifications. Resistance to this class antibiotic is acquired by obtaining a transferable plamid DNA, which contains a gene encoding .

A traumatic brain injury interferes with the way the brain normally works. When nerve cells in the brain are damaged, they can no longer send information to each other in the normal way. This causes changes in the person's behavior and abilities. The injury may cause different problems, depending upon which parts of the brain were damaged most.