A 20-year-old female asked:
A Rh positive blood type?
1 doctor answer
Dr. William Harris answered
32 years experience in Family Medicine
Dominant: Positive is dominant over negative. You get one gene from each of your parents, so you are either --, -+, +-, or ++. Only in the case of -- will you have rh negative blood. With -+, +-, and ++, you will have rh positive blood. This makes rh positive blood the most common type of the two. This can be a problem with a baby: if mom is rh pos (+-), dad is rh neg (--), and baby is rh neg (--): attack!
Answered on Dec 27, 2019
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