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Author Topic: My Baby's Blood Group  (Read 1281 times)

Offline Anu

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My Baby's Blood Group
« on: 22/12/2014 10:01:45 »
Hi, i want to know my baby's blood group. I used a blood group predictor newbielink:https://www.easycalculation.com/medical/bloodgroup.php [nonactive] , it accepts input as my and my hubby blood group..(AB and O). It says that my baby will be A or B. Why no O ?

Is this really correct....

Then wy there is no possiblity of O?


 

Offline Bored chemist

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Re: My Baby's Blood Group
« Reply #1 on: 22/12/2014 13:15:11 »
Baby will either pick  up the gene for A for for B from father.
If either or those genes is present you get A or B respectively, but not O.
(There are some oddities  which may lead to other results, but that's the simplified version.
 

Offline evan_au

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Re: My Baby's Blood Group
« Reply #2 on: 22/12/2014 20:34:06 »
Blood Type A means the presence of protein "A" on the red blood cells. It may be present or absent.
Blood Type B means the presence of protein "B" on the red blood cells.  It may be present or absent.
Blood Type O means the absence of both proteins "A" and "B" on the red blood cells (ie none).

You inherit a gene from each of your parents, resulting in 4 possible combinations:
  • A+A or A+none: Blood type A
  • B+B or B+none: Blood type B
  • A+B: Blood type AB
  • none+none: Blood type O (ie neither protein A nor B is present)

In your case:
  • One parent has A+B (Blood Type AB)
  • The other parent has none+none (Blood Type O)

The child born to these parents can have the following combinations of the parents genes:
  • A+none: Blood type A
  • B+none: Blood type B

For the baby to have blood type O (ie none+none), both parents would need to have a "none" gene present, ie blood types A=A+none, B=B+none or O=none+none (but not A=A+A or B=B+B).

However, in this case, one parent has AB, so there is no "none" gene from that parent.
But it is possible to have grandchildren with blood type O (if that makes you feel any better...).
 
For more, see: http://en.wikipedia.org/wiki/ABO_blood_group_system

The number of combinations increases again when you add in the Rh factor...
« Last Edit: 22/12/2014 20:51:07 by evan_au »
 

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Re: My Baby's Blood Group
« Reply #2 on: 22/12/2014 20:34:06 »

 

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