Uncontrollable angry. Her for consoling.

Hi dear doctor, i married to a girl 6 months back whome i was in love since 4 year, girl parents did not support our marriage, still we married, now some somewhat her parents are in good terms with us. My wife had some anger issue before marriage, Which i awar and she also knew abt it and told me many times. Some time she used to tell me that her mom used to get angry like her before (during my wife childhood) so they took her to doctor and doc. gave my wife mother some tranquliser tablet since then my wife mother became clam. However i ignored her and told her nothing to worry, meditation will take care about it. Even Now if some words come from my mom she is getting very angry and can't control it ,some time she scratches me badly that gives me marks on my body and arm. And then when she calm down she says o my god what have i done, i dint awar of it sorry and also she suffers. Is there any genetic connection between her and her mom or do I need to take her for consoling.