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Full siblings share, on average, about 50% of their DNA (I'm assuming you meant "blood" here metaphorically to describe, for lack of a better word, "relatedness").
A half sibling would normally be half that, or 25%.
This assumes the parents you don't share are unrelated; if they are it gets complicated. If your "half brother" is also your cousin (your dad and mom had you, your mom died, your dad married your mom's sister and they had a child) then you're probably about 38% related. If that's true and also your new stepmom is your mother's identical twin, then you're back to 50% related.
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∙ 10y ago
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Can a half sister in her father share in her father estate?
Yes, a half sister can share in her fathers estate if she was the blood daughter of the father.
What is a half sister or brother?
A half-brother or half-sister is someone who you share ONE and only one parent with, either a father or a mother.
What relation would be your half-sister's half-sister be to you?
You have no blood line relation, You don't share DNA whatsoever. In this scenario putting an example; you and your half-sister share, let's say, the same father but not the same mother and your half-sister's half-sister share the same mother but not the same father. There is no shared DNA between you and your half-sister's half-sister.
If two kids are born from the same mother but different fathers are they still full brother and sister?
Not full brother and sister, but in sharing the same blood line ofthe mother, you are considered to be related by half of the parentage, in this case, on the mother's side. Whether one becomes full brother/sister is a matter of love,compassion, acceptance, and the half factor becomes a matter only of legality. You are half brother and sister. You share your mothers blood but not your fathers.
What relation would a brother's half brother be to a sister?
If your half-brother has a full sister, she is your half sister. If your half brother has a half sister, she may be your full sister, or she may not be related to you at all.
Are agnate and uterine real brother and sister?
agnate sibling: are the one that share the same father but not the same mother uterine sibling: are the one that share the same mother but not the same father i think that agnate slibling are far part brother nd sister blood b/c they dont share the same mother cause if you share the same mother then you close brother nd sister but dont share same father. uterine slibling are close blood brother nd sister b/c they share the same mother not the same father if you dont share the same mother but the same father then that not close brother nd sister.. so the best half sibling are the uterine sibling sharing same mother not the same father. by. Johnny Garcia
Does miley have a sister or a brother?
She has 1 sister, a step-sister, a step-brother, a half-sister and a half-brother
Is the term half-brother or sister a legal term?
Yes. It indicates persons who share a single parent.
Does your half sisters sister count as your sister?
Yes. You both share the same blood, even if you have a different mother or father.
Does Justin Bieber have a half-brother or half-sister?
yes i know for a fact he has a half brother and sister
What relation to you is your half brother's half sister?
Your half-brother's half-sister could be your full sister, or not related to you at all. For example, say your parents are Joe and Mary and your half-brother's parents are Mary and Steven. Say your half-brother's half-sister is Barbara. If Joe and Mary are Barbara's parents, then she is your full sister and your half-brother's half-sister. If Barbara's parents are Steven and Jane, then Barbara is not related to you (unless there is an adoption).
What does brother mean?
A half-brother (or half-sister) is one with whom you share only one parent, i.e. you have the same mother but different fathers or the same father but different mothers.
