Blood Types

11 - 20 of 25 Answers

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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June 1, 2011: My mom was A blood type and I am AB. I believe my dad was O although he also is Bombay blood group. I was told this means my dad was not my dad, is that true?
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October 20, 2010: Where does Rh negative blood truly originate from as I have seen several sites speaking of reptilian blood and blood of the gods? What is that all about and is there any truth to what is said?
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November 17, 2006: If both the father and mother of a child have the blood type B, what possible blood types could the baby have? And, while we're at it, what are all the possible blood types for any combination of parents?
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