Yes you can, I had undergone Bone Marrow Transplantation in 2002, my sister(Donor) had O+ve blood group while mine was O-ve, only HLA matching is required and blood group doesn't matter.
no you cannot he will die
Only a physician would be able to tell you this after very extensive bloodwork.
no
Yes, O- is a universal donor.
No
It depends what blood type of blood you have if you are not an o plus you can't do it
No. Someone who has B blood can only donate to someone with AB blood and B blood. Someone with O blood can only take O blood.
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Type O can donate to any other type, but can only receive a donation from another Type O.
Nope - O negative is the only group that can be safely given to the patient if their blood group is unknown.
No although type O can donate to anyone the positive (plus) can not be put into a blood with negative. This would cause blood clumping and would be very bad.
You are the same blood group. Organ donors also require tissue typing to see if they are a match. You should speak to your family doctor and have them refer you to his nephrologist for bloodwork to see if you are an eligible match.