Blood types

I find this chart interesting because one of my daughters are O- and the other daughter is A-. I thought it was weird that I being A+ had two negative blood typed daughters. Everyone has an RH factor? Yes, just like a blood type everyone also has either a positive or negative RH factor. 

  Learning about blood types is pretty interesting. It’s definitely an area I would like to explore more in the future. 

Links:

Are Blood Types Genetic?

https://www.rhogam.com

Importance of RH factors