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OMG! After all these year--er, months, I have made a startling discovery:
https://www.physicsforums.com/member.php?u=136719
https://www.physicsforums.com/member.php?u=136719
Looks like you knew and didn't tell.mgb_phys said:Or at least a (approximately) half brother.
WarPhalange said:Looks more like your daddy ...
This phrase means that you have a male sibling who shares one or both of your biological parents.
Yes, it is possible to have a brother through adoption or marriage. However, in this context, the phrase typically refers to a biological brother.
You can know if you have a brother by asking your parents or by taking a DNA test.
If you do not have a brother, it means that you do not have a male sibling who shares one or both of your biological parents.
Yes, siblings can be of different genders. This phrase specifically refers to a brother, but it is possible to have sisters, half-siblings, or step-siblings of different genders as well.