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The only way to know for sure is a DNA test. This involves both brother and sister and father having this blood test done. It is not always necessary to have the father participate. Just the brother and sister alone will know if they have the same father. If you want to be sure who that father is, you will need a sample of his blood as well. The test is expensive, however. Talk to Mom or a school counselor if you need to, or wait until you are an adult to have the test done.
What else can I help you with?
Are two brothers with two different father true brothers?
no, unfortunantely, they are not. true brothers are born to the same mother and the same father.
How can you tell if brother an sister have same father if father is cemated?
you could have a paternity test. Answer Testing using DNA from the father's father.
Two boys have same father but different mothers. are they step brothers or real?
They are half brothers
Do brothers have the same x chromosome or asked another way can DNA determine between two brothers the real father of a daughter?
Brothers do not share the same X chromosome. Therefore, DNA analysis can determine the father of a daughter between two brothers with high accuracy by comparing the genetic markers on the child's DNA with the potential fathers'. This is done through paternity testing which looks at specific genetic markers to confirm biological relationships.
Are david and bob mamet brothers?
No half brother same father
Are Logan and Jesse Plant brothers and cousins?
yes they are both brothers and cousins. They have the same father but their mothers are sisters
Can a DNA test be conducted between two brothers who have a common mother to see if they have the same father?
Yes, a DNA test can be conducted between two brothers who have the same mother to determine if they have the same father. The test compares genetic markers shared between the brothers to assess the likelihood of them having the same biological father.
Are scourge and firestar kin?
Yes. They are half-brothers because they have the same father.
How is it that Dwayne smith and Dwayne bravo are brothers?
Yes he is. They are half brothers. They both share the same father.
Why do brothers and sisters share the same trait?
Because their mother and father both gave the same amount and their basicly the same
How are Kevin prince boateng and jerome boateng related?
They are half-brothers, as they have the same father.
Are the masked Kane and undertaker the same person?
no Kane and undertaker are brothers from part of there father
