1.) It means passing/receiving something from your ancestry like language, money, diseases, etc.
2.) Junior inherited not having hope at first from his family and culture because his family said that only white people have hope. He goes to the powwow because it's his culture.
3.) Frederick inherited slavery. He was born during the slavery.
4.) We inherited hope from Frederick and Junior. They both have hope and achieve their goal(s). They taught me to not give up and have hope.