A person revealed to me that he questioned who his father really was as he did not share the same bood type.
2006-09-08 07:27:16 · 12 answers · asked by kishacheyenne 2 in Science & Mathematics ➔ Biology
The old blood tests were most often used to say "absolutely not", no way, could this person be the parent, or they'd say there was a 50% likelihood (and that percentage was often enough for the courts). There are science books listing all the possibilities but indeed one can have a totally different blood type than both of the parents. I, myself am a typeO, mom is typeA, dad is typeAB.
2006-09-08 07:33:42 · answer #1 · answered by Anonymous · 3⤊ 0⤋
To answer your question, blood type is not a good indicator of parentage. In the 1950's, blood type was used to determine parentage. There are only 4 blood types (A, B, AB and O). So in theory, there is a 1 in 4 chance of you having a particular blood type. There is also an Rh factor (positive+ and negative-). In reality there is a higher probabilty of being type O and a lower probablity of being type AB, so the odds are not exactly 1 in 4.
2006-09-08 07:33:55 · answer #2 · answered by johnnylakis 4 · 2⤊ 0⤋
neither is precise. Even the makers of the DNA try will inform you that they might purely fairly try for a handful of hardship-loose breeds, and that they do no longer assure any result if a canines's ancestors have not been in the U. S. very long (i.e. any imported canines in the final 3-5 generations). There are additionally a lot of traces interior breeds that have not any been sequenced - in actuality, purely one canines genome has ever been completely sequenced. you will discover YouTube video clips of purebred canines being instructed they are breeds they don't seem to be (and not even correct breeds - an AmStaff got here back as many times Border Collie) and of blended breeds the place elementary genetics of coat and coloration might doubt their outcomes - a canines is a minimum of 0.5 Poodle yet has a coat like a purebred Labrador? in case your canines seems and acts like a purebred, evaluate it a purebred. It won't have the ability to be registered or bred, yet it is actual of any humane society canines because of the fact that they are spayed/neutered. If apparently adequate like a purebred you will get an AKC chum huge sort to compete in canines activities. the only "purebred try" which will inform you something is a attempt to be certain if THIS sire and THIS dam are easily the mother and dad of THIS canines. in any different case the two are a scam and a waste of your money. My terrific wager for the version is the type of made-up breeds they placed on the cheesy certificates they deliver to you.
2016-10-14 11:21:14 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Hiya, this is quite complicated, but I'll try and explain.
Sometimes blood type can determine it, but not always.
Firstly every person actually has two letters in their blood group eg AB or BO etc. Cause we get one letter form each parent.
-O is a recesive blood group, which if you didnt study genetics simply means it's weaker.
-A and B are dominat, which means their stronger.
O it only counts if someone is Double O or OO. If someone has an A or a B aswell in this, we simply say they are an A or B, because these two are stronger. (So AO is simply A and BO is simply B)
Someone who is AB is so cause they got the A from one parent and the B from another and both are dominant, so both are read.
So if one parent is AO and one is BO, it is possible for them to have a child who is OO, if they both pass an O on.
Couples who are both OO can only have kids who are both OO, so if both his parents are O's and he's something else (eg A,B or AB) or both are AB and he's O, then there is something wrong and he should go for a DNA check.
2006-09-08 07:47:01 · answer #4 · answered by Anria A 5 · 2⤊ 0⤋
Great question! Sure it will hit "home" with many who find they are not the same type as either parent....need a specialist to answer, and a DNA is always the best way to go for absolute certainty. I give you a "thumbs up" on a question that will apply to many out there!
2006-09-08 10:32:45 · answer #5 · answered by foxy country girl 1 · 1⤊ 0⤋
DNA determines blood type. But of the blood types of the parents differ, the child's blood type can be that of either parent. Hence, if one is attempting to determine whether A is a parent of B, a DNA assay is needed.
2006-09-08 07:31:18 · answer #6 · answered by Anonymous · 2⤊ 0⤋
it can only tell you who is not the parent, as certain mixed blood types can only produce children with a certain types of blood, this person who told you needs to find out mothers and fathers blood type and then ask Dr if these two will make the type they are.
2006-09-08 07:32:11 · answer #7 · answered by blackwidow2408 2 · 3⤊ 0⤋
Blood typing (and other blood tests) was used to determine paternity, but has been replaced by DNA testing.
2006-09-08 07:57:07 · answer #8 · answered by ssbn598 5 · 1⤊ 0⤋
blood type can rule somebody out as a potential parent, but only dna can confirm paternity.
2006-09-08 07:30:05 · answer #9 · answered by Anonymous · 2⤊ 0⤋
DNA is the best bet
2006-09-08 09:13:00 · answer #10 · answered by Aubrey J 1 · 1⤊ 0⤋