Alabama  |  Wills and Trusts

I was born in Alabama. My biological father left my mother and myself when I was 10 months old. They divorced a year or two later. My biological father had no contact with me from the day he left by his own choice.My biological father briefly was made to pay child support when he was in the Navy. He has since married (had two children -my half sisters) My mother later remarried and I was adopted by my stepfather when I was about 9 years old. My half sisters only recently found out about me. My biological father's family has had no contact with me until recently. My question is -can I inherit from my biological father's estate when he dies?