Twins and blood type

shady06

Anyone have fraternal twins with the same blood type?  I have di-di twin boys (two placentas, two sacks) that look an awful lot alike.  They have the same blood type (AB+).  We're going to do the DNA test soon but I was wondering how common it is for fraternal twins to have the same blood type?

 

JustaKidAtHeart

mine have the same blood type because DH and I have the same blood type.

SNL0605

yep- my b/g twins are both O+, and DH and I have different blood types

sweater

My brother and I (3 years apart in age) have the same blood type and my parents don't. It's very common.

But I think the same blood type in twins who look similar are a great reason to test - good luck!?

cands

It depends on the blood type of the parents.  Fraternal twins would have the same likelyhood of having the same blood type as other siblings.  I don't know my daughter's blood type, but I know that my twin sister and I have the same blood type, but since both my parents are O+ they can only have kids with O+ blood, so we were going to have the same blood type regardless of being fraternal or identical.  

Moonpie73

My girls have the same blood type.  But both me and DH are O+ too so that's probably why.

Kristenl2020

My B/g twins are A pos. I am O pos and Dh is A pos.
The funny thing is I always thought I was A pos because both of my parents are A pos so I always assumed I was the same. What a shocker when I was in the hospital they told me I was O. I called my Mom and asked her if my Dad was really my Dad! So funny. It turns out that I got one of my Grandparents blood type.

SCOOTER

If your same sex twins have the same blood type and look very alike, I'm putting my money on identical.  GL

jmubride2

I wouldn't think it was odd, it would be the same as any siblings haveing the same type.  My two sisters and I are all O+. my mom is O+ my dad is B+ (so he must be an O carrier- BO+, since O is recessive)

jmubride2

Kristenl2020:

My B/g twins are A pos. I am O pos and Dh is A pos.
The funny thing is I always thought I was A pos because both of my parents are A pos so I always assumed I was the same. What a shocker when I was in the hospital they told me I was O. I called my Mom and asked her if my Dad was really my Dad! So funny. It turns out that I got one of my Grandparents blood type.

One of your grandparents on each side must be O, since your parents are both AO which is how they passed O on to you.  since O is the recessive gene.

FaeryStarGazer

I think it's pretty common for siblings to have the same blood type. I have am one of four children, three of us have the same blood type.

april062604

i'm A+ and both babies are A+; DH is O+