parent’s blood type (EVERYONE PLEEEEEEEASE RE
In a message dated 9/29/00 2:46:03 PM !!!First Boot!!!,
Duquete@… writes:
<< So if I’m an O negative, wouldn’t that mean that my parents would both be
O as well.
Not necessarily. If your Dad is AO (or BO) and your Mom is AO (or BO) OR one
parent is AO and one parent is BO you could still be an O if you got an O
from each parent no matter what their blood type is.
I am O and hubby is B. I only have two O genes to give (OO). Hubby’s father
was A and mother was B. Hubby got a B from his mother and an O from his
father (which makes him BO). How do I know? Because one of our daughters is
O and in order for her to be O she has to receive one O gene from each
parent. So it goes like this:
Hubby BO= B blood type
Myself OO= O blood type
Daughter 1 O blood type=OO (one O gene from me and one from hubby)
Daughter 2 B blood type=BO (one O gene from me and one B gene from hubby)
If hubby were BB (meaning if he got a B gene from both his parents) then both
our children would be B blood type BUT they would still each get an O gene
from me (that’s all I have to give) which they could pass on to their kids.
They would still HAVE the O gene even though it’s not expressed.
So if you have a 2 O parents; an 2 AO parents; 2 BO parents; or one AO and
one BO parent; you could still end up with O children. As long as each
parent has an O gene, each parent has a 50/50 shot at giving their children
that O gene no matter what the parent’s blood type is.
The way we used to diagram this in biology might help. Draw a square on a
piece of paper and divide it into 4 sections by drawing one line horizontally
and one line vertically. Take the example of my hubby and myself. Over the
first box at the top, write a letter O. Over the second box at the top,
write a letter O. Next to the first box on the left side write a letter B.
Next to the bottom box on the left side write a letter O. Then bring the
letters down into each of the corresponding boxes. You should end up with
something that looks like this:
O O
B
O
After you bring the letters down into the 4 boxes, the boxes should look
like this:
BO BO
OO OO
Those will be the children’s possible blood types. So in this example, hubby
and I have an equal shot producing either B or O children.
HTH,
Tabitha