ANSWERS: 2
  • Nope. One parent must be B or AB in order to produce a child with B type blood. If both parents are O, then their children will all have O type blood. Note: Blood type is determined by a certain type of antigent that you have on your red blood cells. A's have A antigens, B's have B antigens, AB's have both, and O's have neither. I do believe that there is a disorder in which a person is missing the molecule that connects the antigen to the cell membrane. (I can't remember the name of this condition, but it wouldn't be any symptoms.) If a person has this disorder, then A or B antigens are present, but cannot be detected. So it is possible that a parent could have B type blood, but tests will show that they are O type. If this were the case, then it MIGHT be possible for a B type child to be produced from that parent.
  • This is an interesting one. Both of my parents and my two sister are B types, I'm the outsider as an O negative. It's the family joke that I'm "the mailmans' baby".

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