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A 33-year-old male asked:

if parent are blood group o+ and b+ can a child be a+?

2 doctor answers2 doctors weighed in
Dr. Ed Friedlander
Pathology 44 years experience
Usually not: However, there are some mild A alleles that may not show in the parent, or there may be an actual error -- switched sample or results.
Dr. Satish Sundar
Pediatrics 34 years experience
No: The odds are O pos, B pos O neg B neg, but never A pos

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Last updated Sep 23, 2018
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