Paternity Determination by Blood Type Chart Calculator
Blood type can be used to disprove paternity only in some cases.
In other words, the non-father's blood type may be the same or be of a type where either man could be the father based solely on the blood type but not in the results of a DNA Paternity test.
In paternity civil lawsuit against the mother by fathers and children
See more about the civil lawsuits brought against mothers by their husband, or males falsely reported as the father or even children in paternity fraud cases of 10 different counties on this website.
In such cases, the paternity fraud deprives a child of the relationship and heritage of the biological father and the child rights found in UN Convention on the Rights of the Child which states that a child has the right to be raised by both biological parents.
1 out of 6 Canadians areVictims of Paternity Fraud - Read More..
The ABO blood type charts below can be used to predict thepossibilities of paternity.
The charts below can assist you to determine either:
1. The ABO blood type of the child when theblood type of the father and the mother are known (top chart), or
2. The ABO blood type of the father if the blood typeof the child and the mother are known (bottom chart).
ABO Blood Type Calculator
ABO blood types can be complicated to understand. This is mostly dueto the fact that the 'O-type' antigen is masked by the presence of an A- or B-typeantigen. This is explained in the following chart, showing thedifferent the genotypes that make up the blood types.
| Genotype (DNA) | Blood Type |
|---|---|
| AO or AA | A blood type |
| AB | AB blood type |
| BO or BB | B blood type |
| OO | O blood type |
For example, two O blood type parents can produce a child with only Oblood type. Two parents with A blood type can produce a child witheither A or O blood types. Two parents with B blood type can produce achild with either B or O blood type. One parent with A and another withB can produce a child with A, B, AB or O blood types. If one parent hasA and another has AB, they can either produce a child with A, B or ABblood types. If one parent has A and another has O, they can eitherproduce a child with A or O blood types.
Rh Positive (Rh+) and Negative (Rh-) Blood Types
The Rh (+/-) factor is inherited separately from the ABO blood types.Similarly to the masking effect of the O gene in ABO blood types, the Rhnegative (Rh-) gene is also masked by the presence of a Rh positive(Rh+) genotype. Therefore, a person may have a Rh + blood type and canstill have an Rh - gene (See the chart below). Further more, 2 parentswith Rh + blood types can have a child with Rh - blood type.
| Genotype (DNA) | Blood Type |
|---|---|
| (+ , -) or (+ , +) | Rh + |
| (- , -) | Rh - |
Canada's largest national daily newspaper
Mommy's little secret - 1 out of 6 Canadians areVictims of Paternity Fraud
The Globe and Mail, one of Canada's 2 national newspapers, The article contains info about children'sidentity fraud at The Hospital for Sick Children in Toronto, Canada. December 14, 2002.
Includes interview with employees of Hospital for Sick Children in Toronto, Ontario, Canada who admitthey deny children's identity information to husbands/male partners of mothers who want to hide the realidentity of their child because they had an affair. The U.N. Convention on the Rights of The Childspecifically supports a child's human right to have a relationship with both his/her biological parents. Inaddition, this article is proof that The Hospital for Sick Children ("Sick Kids") supports paternity fraud.
Further "Sick Kids" supports a mother's rights only, which they view, supersedes 3 other people's rights,namely, the rights of the biological father, the rights of the mother's male partner/husband and the child'sidentity rights. Read More ..
About The Hospital for Sick Children in Toronto, Canada.
Affectionately called "Sick Kids", is one of the largest paediatric academic health science centres in theworld, with an international reputation for excellence in health care, research, and teaching.
Scotland's National Newspaper
96% of women are liars, honest
5,000 women polled
Half the women said that if they became pregnant by another man but wanted to stay with their partner, they would lie about the baby's real father.
Forty-two per cent would lie about contraception in order to get pregnant, no matter the wishes of their partner. Read More ..
Adulterous woman ordered to pay husband £177,000in 'moral damages'
The Daily Mail, UK
18th February 2009
An adulterous Spanish woman who conceived three children with her loverhas been ordered to pay£177,000 in 'moral damages' to her husband.
The cuckolded man had believed that the three children were his untila DNA test eventually proved they were fathered by another man.
The husband, who along with the other man cannot be named for legal reasonsto protect the children's identities, suspected his second wife mayhave been unfaithful in 2001. Read More ..
Biology, not heart, provokes women's infidelity
Sydney Morning Herald, Australia
January 15, 2009
BEAUTIFUL women who have affairs can now blame it on their sex hormones.
Women with higher levels of oestradiol, a form of oestrogen, not onlylook and feel Read More ..tractive, they are also more likely to cheat on theirpartners, a new study has found.
One-night-stands are not what interest these flirtatious females, whotend to have bigger breasts, relatively small waists and symmetrical facesas a result of their high levels of oestradiol.
Rather, they adopt a strategy of serial monogamy, say the researchers,led by Kristina Durante of the University of Texas. Read More ..
Adulterous woman ordered to pay husband £177,000in 'moral damages'
The Daily Mail, UK
18th February 2009
An adulterous Spanish woman who conceived three children with her loverhas been ordered to pay£177,000 in 'moral damages' to her husband.
The cuckolded man had believed that the three children were his untila DNA test eventually proved they were fathered by another man.
The husband, who along with the other man cannot be named for legal reasonsto protect the children's identities, suspected his second wife mayhave been unfaithful in 2001. Read More ..
Biology, not heart, provokes women's infidelity
Sydney Morning Herald, Australia
January 15, 2009
BEAUTIFUL women who have affairs can now blame it on their sex hormones.
Women with higher levels of oestradiol, a form of oestrogen, not onlylook and feel Read More ..tractive, they are also more likely to cheat on theirpartners, a new study has found.
One-night-stands are not what interest these flirtatious females, whotend to have bigger breasts, relatively small waists and symmetrical facesas a result of their high levels of oestradiol.
Rather, they adopt a strategy of serial monogamy, say the researchers,led by Kristina Durante of the University of Texas. Read More ..
DNA: Why the truth can hurt
The Sunday Times
Australia
March 27, 2005
IT sounded too good to be true and it was.
The fairytale that saw Federal Health Minister Tony Abbott reunited with the son he thought he had given up for adoption 27 years ago, ABC sound-recordist Daniel O'Connor, ended this week when DNA tests confirmed another man had fathered Mr O'Connor.
The revelations were devastating for all involved, not least Mr O'Connor.
Still reeling from the emotional reunion with his mother, Kathy Donnelly, and Mr Abbott a few months ago, a simple test of truth has thrown the trio into disarray a situation familiar to thousands of other Australians.
Paternity testing in Australia is a burgeoning industry.
The simplicity of the test cells are collected from a mouth swab grossly underestimates the seriousness of the situation. Read More ..
Fathers May Get Money Back in Paternity Fraud Cases
18 March, 2005
FindLaw, Australia
Proposed new laws will make it easier for fathers to recover child maintenance payments if DNA testing reveals that they are not the child's father.
The Family Law Amendment Bill 2005 allows people who wrongly believed they were the parent of a child to recover any child maintenance paid or property transferred under an order of a court under the Family Law Act 1975 .
"The bill is intended to make it easier for people who find themselves in this position to take recovery action without the need to initiate separate proceedings for an order from a court of civil jurisdiction, such as a State, Local or Magistrates court," Attorney-General Philip Ruddock said.Read More ..
Men wage battle on 'paternity fraud'
USA TODAY, by Martin Kasindorf, December 12, 2002
An acid sense of betrayal has been gnawing at Damon Adams since a DNA test showed that he is not the father of a 10-year-old girl born during his former marriage.
"Something changes in your heart," says Adams, 51, a dentist in Traverse City, Mich. "When she walks through the door, you're seeing the product of an affair."
But Michigan courts have spurned the DNA results Adams offered in his motions to stop paying $23,000 a year in child support. Now, Adams is lobbying the state Legislature for relief and joining other men in a national movement against what they call "paternity fraud." Read More ..
One in 25 fathers 'not the daddy'
Up to one in 25 dads could unknowingly be raising another man's child, UK health researchers estimate.
Increasing use of genetic testing for medical and legal reasons means Read More ..uples are discovering the biological proof of who fathered the child.
The Liverpool John Moores University team reached its estimate based on research findings published between 1950 and 2004.
The study appears in the Journal of Epidemiology and Community Health.
Biological father
Professor Mark Bellis and his team said that the implications of so-called paternal discrepancy were huge and largely ignored, even though the incidence was increasing.
In the US, the number of paternity tests increased from 142,000 in 1991 to 310,490 in 2001. Read More ..
Who's the Daddy?
Up to three million Britons may be wrongabout who their real father is , experts claim. But using DNA paternitytests to discover the truth can cause its own problems.
BBC, U.K., May 16, 2003
Dad's got blue eyes, Baby brown...
When Tessa found out she was pregnant after fertility treatment, she felta mix of delight and doubt.
This wasn't simply pre-baby nerves - she suspected that her husband mightnot be the father. For Tessa had started sleeping with a colleague when thestress of the ongoing treatment became too much.
Keen to build a family with her husband, she let him believe the baby washis. But her lover threatened to reveal all if she ended the affair, and Tessasoon fell pregnant again. This time, her lover started to make nuisance callsto her home.
Tessa had no choice but to tell her husband. "I said to him, 'I've had anaffair and you may not be the father of my children.' So with that, he wentup the stairs, got dressed and left. And that was it," Tessa says in Women WhoLive a Lie, a programme for the BBC's Five Live Report. Read More ..
Would you wear the jacket?
THERE IS A story I used to find hilarious in my high school years about a not too bright man. He was light skinned, his wife was of similar hue, but their first child was born with very dark complexion (darker dan Bello, blacker dan Blakka).
When the man wondered aloud about the baby's complexion his wife assured him that the child was born dark because the child was conceived in darkness (they had sex with the lights off). The man accepted the explanation. Because he loved his wife dearly, he also ignored the fact that the child had other obvious signs of resemblance to the young dark skinned man who did their gardening. To fix the problem, the husband put flood lights, strobe lights, spotlights and forty other lights in the bed room so there would be no Read More ..darkness to create dark babies.Read More ..
United States
"Duped Dads, Men Fight Centuries-Old Paternity Laws"
"Supporters of paternity identification bills point to a 1999 study by the American Association of Blood Banks that found that in 30 percent of 280,000 blood tests performed to determine paternity, the man tested was not the biological father." Read More ..
Download / view pdf file
American Association of Blood Banks
Parentage Testing Program Unit
Annual Report Summary Testing in 2001
Volume of testing 310,490 for the 2001 study
The Supreme Court of Canada -
Cour suprême du Canada
Big win for child identity rights.
Father wins right to be named on birth registration forms. Read More ..
Infidelity--It may be in our genes. Our Cheating Hearts
Devotion and betrayal, marriage and divorce: how evolution shaped human love.Read More ..
Fathers demand mandatory paternity testing
A men's rights group has called for mandatory paternity testing of all babies after government figures revealed almost 600 instances of men compelled to financially support children they did not father.
Since changes to child support laws four years ago, there had been 586 cases of men successfully using DNA testing to show they were not biologically related to children they had been financially supporting, the federal government has revealed to The Australian. Read More ..
DNA test confirms fraud, annulment granted: judge
The Visayan Daily Star, Bacolod City, Philippines, BY CARLA GOMEZ, February 28, 2009
Bacolod Regional Trial Court Judge Ray Alan Drilon has annulled the marriage of a Negrense couple after a DNA test showed that the child borne by the wife was not the biological offspring of the husband who works abroad.
The family court judge ruled that the marriage of the couple, whose names are being withheld by the DAILY STAR on the request of the court, was null and void.
Due to fraud committed by the wife in getting her overseas worker husband to marry her, properties acquired during their marriage are awarded in favor of the husband, the judge said in his decision, a copy of which was furnished the DAILY STAR yesterday.
The judge also declared that since the overseas worker is not the biological, much less the legitimate father of the child of the woman, the Civil Registrar is ordered to change the surname of the child to the mother's maiden name and remove the name of the plaintiff as father of the child.
The complainant said he was working as an electronics engineer in the United Arab Emirates and on his return to the Philippines in 2001, his girlfriend of 10 years with whom he had sex, showed him a pregnancy test result showing that she was pregnant.
On receiving the news he was overjoyed and offered to marry her. Shortly after he went to Saudi Arabia to work, and his wife gave birth to a baby girl in the same year.
The birth of the child only five months after their marriage puzzled him but his wife told him that the baby was born prematurely, so he believed her, the husband said. Read More ..