Yes, that is one way AB can occur. For a plug-in tutorial:
http://tinyurl.com/7b33s
Both my father and his father were type AB, so we have differing results. Among
6 siblings we have A B and AB, with mother's blood type A.
Date: Wed, 29 Jun 2005 23:46:16 -0700
From: Robert Chapman <drrob(a)redshift.com>
Subject: Re: [CHAPMAN-DNA] Re: AB Blood Type
A person with type AB blood has inherited the A gene from one parent and
the B gene from the other. This blood type is not inherited from one
parent alone. Each parent will provide an A or a B gene or the type O gene
which does not react with blood typing reagents. Thus we observe people to
be type A, B, AB, or O depending on the inheritance from both parents. I
hope this information is helpful.
At 09:11 AM 6/29/05 -0700, you wrote:
>Interesting, Pat. You should be able to learn your father's, his father's
>blood
>type. The existence of AB was known by about the 1930s, before my
grandfather
>1864-1934 died. Sometimes also, one could fairly accurately deduce that it
>wasn't from mom if mom's blood type is known to be other than AB.
>
>Date: Tue, 28 Jun 2005 20:41:37 -0700 (PDT)
> > From: Pat Pulasky <wva2calif(a)sbcglobal.net>
> > Subject: AB Blood Type
> >
> > I have AB Positive blood type, but don't know if it
> > came my way by paternal or maternal blood lines.
> > Pat Pulasky, nee Chapman.
> >
> > Kaye in Texas wrote:
> >
> > >Outta curiosity, have any of you Chapmans a history
> > of >blood type AB, father, grandfather, &c?
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