2007-01-05 04:33:37 · 6 answers · asked by Mary E. 2 in Pregnancy & Parenting ➔ Newborn & Baby
Normal Blood Typing is determined by genes contributed by the father and the mother of the child.
There are 3 common genes known as A, B, and O. There are others, but we'll ignore them, because they are so very rare.
You receive one of these genes from your father, and one from your mother. You can't get one from anyone else.
A and B are "dominant." That is, if you have an A, or a B, it will be included in your blood type.
Gene Combinations can be:
AA - called A - you got an A from mom and from Dad
AO - called A - You got A from one parent, O from the other
BB - called B - You got a B from mom and from dad
BO - called B - You got a B from one and O from the other
AB - called AB - you got A from one parent, B from the other
OO - called O - You got an O from each parent.
Whatever you have, that's all you can give to your kids.
Most people don't know whether they have a recessive gene, unless they are "AB" or "O." If they're AB, they have no recessive gene, and any child they contribute to will have an A or a B (but not both) from them. If they're O, they have only the recessive O gene and any child they have will get an O from them.
Examples of blood types from different parent groups:
"A" Combinations
AA + AA = AA
AA + AO = AA, AO
AO + AO = AA, AO, OO
"B" Combinations
BB + BB = BB
BO + BB = BB, BO
BO + BO = BB, BO, OO
AA + BB = AB
AB + AB = AA, BB , AB
"O" Combinations
AB + OO = OA or OB
AO + BB = AB, BO
AO + BO = AO, BO, AB, OO (edited this, forgot AB)
AA + BO = AO, AB
BB + AO = BO, AB
Note: All results equally probable!!!
Hope this helps!
2007-01-05 04:50:38 · answer #1 · answered by jbtascam 5 · 0⤊ 0⤋
The biological mother and father determines the blood type the child will have.
2007-01-05 12:42:18 · answer #2 · answered by Susan 2 · 0⤊ 0⤋
The parents blood types.
2007-01-05 12:39:21 · answer #3 · answered by beth9878 2 · 0⤊ 0⤋
The blood types of the father and mother.
2007-01-05 12:35:12 · answer #4 · answered by just me 3 · 0⤊ 0⤋
http://www.biology.arizona.edu/human_bio/problem_sets/blood_types/inherited.html#calculator
how about a blood type calculator....too cool. I am gonna go play with it, he he he
2007-01-05 12:37:30 · answer #5 · answered by WitchTwo 6 · 0⤊ 0⤋
genetics
2007-01-05 12:36:43 · answer #6 · answered by KathyS 7 · 0⤊ 0⤋