In the novel, My Sister's Keeper, Anna is born to save Kate's life. Kate has leukemia and to save her life she needs a genetic matching figure to donate blood cells, bone marrow. Anna is born to save her life for her. Turns out, Anna is on how her life style is , and she goes to court , as her mother defending in Anna's behalf. By refusing to give Kate her kidney, she was doing what Kate wanted in the first place. Kate tried to kill herself and when she realized she couldn't, she asked Anna to. Of course Anna wouldn't do such a thing, so she refused to donate the kidney, claiming it was what she wanted...