Aa
A
A
A
Close
Genetics Community
968 Members
Avatar universal

Confused

My Dad is O+ and my Mum is A2B+ but my blood type is B-. How is this possible?
1 Responses
19457880 tn?1478056142
There are many blood types.  Most of us think of A, AB, B, and O.  We generally know people are RH neg or pos.  But some people are RH neutral.  Meaning sometimes the RH seems opposite.  There is also something known as a universal donor and a universal recipient.  This can also affect a babies blood type.  If one of your parents have had a bone marrow transplant it might seem weird.

I have a condition known as chimerism.  This made my own blood type odd.  I've had a daughter with A neg and a son with B positive.  My body was one of the few with two blood types.  Universal Donor and Recipient.  I've also had a bone marrow transplant from stem cells from my A positive twins(in the 70s) when I had leukemia which cured it.
Have an Answer?
Didn't find the answer you were looking for?
Ask a question
Popular Resources
An interview with the co-discoverer of one of the biggest breakthroughs in cancer research
For people with Obsessive-Compulsive Disorder (OCD), the COVID-19 pandemic can be particularly challenging.
A list of national and international resources and hotlines to help connect you to needed health and medical services.
Here’s how your baby’s growing in your body each week.
These common ADD/ADHD myths could already be hurting your child
This article will tell you more about strength training at home, giving you some options that require little to no equipment.