As apparent from topic that here the discussion point is about two kind of relations, step brother and half brother. Apparently it feels that both are same kinds of relationships but you will be surprised after reading the differences between step brother and half brother. First read the brief introduction of both terms and afterward goes for the differences. The main difference between step brother and half brother is that step brother have no common genes while half brother shares 50% common genes.
What is Step Brother?
Understand it with an example. Suppose Jack is the only children of his parents. Unfortunately his father died or his mother divorced and his mother remarried with another person who has already a boy Michael. Now Michael is your step brother. He is in all aspect your legal brother but the difference is that you have no common genes because you both are from different parents. This is all in case of step relationship. This example can also be understand in case of remarried of father in case of divorce or death of mother.
What is Half Brother?
Continue the above example. After remarried, Jack’s mother has a boy child from his step dad. Now that boy is the half brother of Jack. He is half brother of Jack because he and Jack both have common mother but have not common father because he is from Jack’s step-dad, not from his original dad. That’s why this relationship is known as half brother because both Jack and his new born brother both have common genes from mother side. This example can also be understand in case of remarried of father in case of divorce or death of mother.
- Two half brothers have blood relationship while two step brothers have no blood relationship.
- Half brothers share 50% common genes from mother in case of death of father and from father in case of death of mother. While step brothers have no common genes because both are from different parents.
- Step brother enjoys dual legal rights one form new parents side and other from previous parents side if any. While half brother has just one legal right from his original parents.
- Step brother can marry with step sister while half brother and sister cannot make marital relationship.