Blood Types

1 - 10 of 18 Answers

August 16, 2017: I have AB blood type and my partner is O. How did we get a daughter with A blood type and a son with B?
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December 6, 2016: In general, does a child usually have the same blood type as one of their parent's blood type?
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March 8, 2016: All three of my children are AB negative. Does this mean that I must be Rh negative?
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October 15, 2015: If my blood group is A positive, does that mean one of my parents would have to be the same?
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October 24, 2013: Can twins have two different blood types if they have the same father?
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July 24, 2013: Could you please explain if it is possible for a father who has O positive blood and a mother with A positive blood to have a baby with O negative blood? I am a little confused and have been trying to research the answer. I would appreciate if you are able to assist.
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July 9, 2013: Did Rh- blood come from Neanderthals?  I have seen postings on the web that say that it entered human DNA around 35,000 years ago and that seems about right for coming from Neanderthals.
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March 7, 2012: My doctor told me that I'll have to get a RhoGAM shot later in my pregnancy because I have type O negative blood. What is the Rh factor and why is it a problem to be Rh negative during pregnancy? And why would something that can be such a danger to a baby become as common as it is?
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February 7, 2012: My mother had AB blood, I have AB Blood, and my daughter has AB blood. Her half brother by her mother has O. How is this possible?
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September 7, 2011: Can an AB father and an A mother have an O baby?
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