Indicate true (T) and false (F) statements below regarding apoptosis in disease. Your answer would be a four-letter string composed of letters T and F only, e.g. TTTF. ( ) Either excessive or insufficient apoptosis can contribute to disease. ( ) Excessive apoptosis, in many cases, leads to autoimmune disease and cancer. ( ) In about half of human cancers, the tumor suppressor protein p53 is mutated. ( ) Drugs that interfere with the function of Bcl2 family proteins such as Bax and Bak may treat cancers by stimulating apoptosis.