When Can I Donate Blood Again After Donating Blood
With a degree in biochemistry, Leah works for a minor biotechnology company and enjoys writing virtually scientific discipline.
Blood Group Moving picture
Blood type is determined by sugar-based antigens on the reddish claret cell surface. Those with blazon O blood do non have any antigens at all.
©2012 - leahlefler, all rights reserved.
What Is Blood Type?
Red claret cells (chosen erythrocytes) accept a type of antigen on their surface. Composed of saccharide molecules, these antigens are called agglutinogens. In that location are 2 types of agglutinogens: type A and blazon B. The type of antigen on the surface of your red blood cells determines your blood type.
There are four bones blood types, made upwardly from combinations of the type A and blazon B antigens.
Type A: The reddish claret cells have the type A agglutinogen.
Blazon B: The scarlet blood cells take the type B agglutinogen.
Type AB: The red blood cells take both type A and blazon B agglutinogens.
Blazon O: The red claret cells practice non have any agglutinogens at all.
There is another protein (called Rh factor) that is sometimes plant on reddish blood cells. If a person has Rh factor, their claret type is called "Rh positive." An individual lacking this protein is chosen "Rh negative." Combined with the ABO blood types described above, a person may be A+, A-, B+, B-, AB+, AB-, O+, or O-.
Blood Types Effectually the World
Blood Group Poll
Claret Types Around the World
Blood types vary depending on the geographical region: Scandinavians have a high probability of carrying the A blood type, while those indigenous to central Asia are more likely to comport the B blood type. The O blood type is the well-nigh common blood type around the globe.
According to the National Center for Biotechnology Information (a molecular biology resource funded by the government), the breakdown of blood type by region is:
Claret Type A: Primal and Eastern Europe
The A claret group is common in central Europe. Almost one-half the population in Denmark, Norway, Austria, and the Ukraine accept this claret type. This blood type is also establish in high levels among small-scale, unrelated groups of people. In Montana, eighty% of the Blackfoot tribe has the A claret group.
Blood Blazon B: Asia
The B claret type is rare in Europe (about 10% of the population), only fairly common in Asia. Most 25% of the Chinese population demonstrates this blood blazon. This blood blazon is also fairly common in India and other Key Asian countries.
Scroll to Continue
Read More From Owlcation
Blood Blazon AB: Asia
The AB claret type is the rarest of all. Information technology is establish in up to 10% of the population in Japan, Korea, and China, but is extremely rare in other regions.
Blood Type O: The Americas
The O claret type is the most common around the globe, and is carried by nearly 100% of those living in Due south America. Information technology is the almost mutual blood type among Australian Aborigines, Celts, those living in Western Europe, and in the Usa.
Rh Factor
The majority of people in any geographical region are Rh positive. Caucasians are the most likely to be Rh negative, with approximately 17% of claret donors demonstrating a lack of this protein. Native Americans are the next highest proportion of the population to test every bit Rh negative: approximately x% of donors from this population lack this protein.
Coconut Juice Claret Transfusions in World War Ii
Every bit World State of war II raged through the Pacific, blood products were in short supply. In emergency situations, Japanese and British medics would resort to kokosnoot water. Coconut water (the juice inside a young coconut, not "milk" which is made from grinding up the meat of the fruit) has fewer electrolytes than claret plasma, but it is sterile and works in a like style to a saline Iv baste. In a pinch, coconut water is tolerated fairly well past humans. In fact, coconut water preserves teeth better than milk - something to keep in mind the next time a molar gets accidentally knocked out!
The History of Blood Transfusions
In the 19th century, no 1 understood that people had unlike claret types. Blood transfusions often resulted in decease, equally the receivers immune organization would attack the foreign, unmatched blood that was transfused.
The history of blood transfusion goes all the way dorsum to the 1600's, when William Harvey discovered the circulatory system. Past 1658, Jan Swammerdam was viewing red blood cells through a microscope. The very first transfusions occurred in dogs, as the English physician Richard Lower demonstrated that a dog could be kept alive past transfusing blood from other dogs.
Unfortunately, the motility to human transfusion was quite catchy. As there was no understanding of claret groups, blood transfusions were extremely risky. Sometimes they were successful: in 1818 James Blundell managed to reach the offset successful human blood transfusion, and saved a adult female hemorrhaging from childbirth. Other people, however, simply went into shock and died after blood transfusions.
Some scientists attempted to prevent the adverse reactions to blood transfusions past transfusing blood substitutes. The transfusion of cow'due south milk was attempted in 1854 in Canada, during a cholera epidemic. Drs. Bovell and Edwin Hodder started intravenous transfusions of milk in the belief that the fat molecules in milk could be transformed into white blood cells, and that white blood cells were an immature version of ruby blood cells. This belief was erroneous, of course, just they had success with one sick homo who responded favorably to the transfusions. Two other patients, nonetheless, died afterwards milk was transfused into their veins.
These experiments were discontinued in Canada shortly after the cholera epidemic, only were revived in New York City a few years after. Using caprine animal's milk this time, Dr. Joseph Howe transfused patients suffering from concluding tuberculosis. The patients all demonstrated nystagmus (shaking middle movements) and chest hurting, and all of the patients died a few hours after transfusion.
Despite the lack of obvious do good, milk transfusions continued in the late 1880'south, as the use of blood was discouraged since it had a tendency to coagulate. As more patients died from milk transfusions, the practice fell out of favor. In the 1880's, isotonic saline solution was invented, and the use of milk roughshod entirely out of favor in favor of the new, safe saline solution. The revival of claret transfusions would have to wait for the twentyth century, when a new era of microbiology ushered in the agreement of various claret groups and compatibility.
In 1901, an Austrian doctor named Karl Landsteiner recognized the three basic claret groups – claret was starting time cantankerous matched in 1907. Blood storage was withal a trouble during the early days of blood transfusion – while the compatibility issues had been resolved, blood still had a tendency to jell during storage. Anticoagulants like sodium citrate were adult in the twelvemonth 1914, assuasive blood storage for an extended period of time. The discovery of Rh factor in 1940 allowed doctors to completely empathize the compatibility bug among blood donors and recipients, and the American regime started its first national blood collection program shortly thereafter.
Claret Typing Video
Blood Type Tests and Blood Transfusions
A traumatic auto blow has occurred, and a severely injured patient is rushed to the emergency room. As the patient lies haemorrhage, doctors scurry to accept a sample of the patient's blood and have information technology sent away to be typed and cross-matched.
In the laboratory, a technician applies the blood to a special carte du jour, which contains antibodies to the A and B claret groups. If the patient's claret clumps around the A antibody, this means they have the B antigen and it is attacking the A antibiotic. If the patient's blood clumps around the B antibody, so the patient has the A blood blazon. If the patient's blood clumps around both the A and the B antibody, they accept the O blood type, and if the patient's blood doesn't react to either the A or B antibodies, then he or she has the AB claret blazon.
In the instance of our patient, the blood clumps effectually both the A and the B antibodies. The patient has the O claret type. An Rh test is also performed, and our patient is positive for this protein.
As determined by this examination, the patient needs a transfusion of type O+ or O- blood. The blood banking company releases type O+ blood for utilise, and the patient is and so cross-matched to be sure there are no adverse reactions.
The sample of the O+ claret is taken from the blood bank and mixed with the patient'due south blood in a examination tube. The sample is watched for any adverse reaction, and if no clumping is noted, the blood is safe for the patient to utilize. The sample demonstrates no reaction with our patient'due south blood, so the bag of donated, O+ claret is rushed downwards to the waiting patient. Equally blood is transfused, the patient's vital signs ameliorate.
Claret Types and Compatibility
The AB+ claret type is known as the Universal Receiver: an private with this blood type can receive any other blood type without reaction.
The AB- blood type may receive claret types A-, B-, or O-; whatever transfused blood must be Rh negative to avoid reaction.
The A+ claret blazon may receive blood types A+, A- , O+, or O-.
The A- blood type may receive blood types A- and O-.
The B+ claret blazon may receive blood types B+, B-, O+, or O-.
The B- blood type may receive blood types B- or O-.
The O+ blood type may receive claret types O+ or O-.
The O- blood blazon may only receive the O- claret type. People with O- blood are known as Universal Donors, as their blood volition not crusade a reaction with whatsoever other blood type when donated, since the blood lacks all surface antigens and volition not provoke an immune organization attack in the receiver.
Blood Compatibility and Rh Factor
Blood Type Complications: Rh Factor in Pregnant Women
For nigh people, blood type is of little consequence in life. Sometimes, withal, a woman is Rh negative and becomes pregnant with a baby who is Rh positive. If this is the first pregnancy, the baby is commonly fine because the mother'southward blood doesn't mix with the baby's during the gestational menses. Sometimes, all the same, the babe's and mother'south blood mixes during delivery. The female parent's immune arrangement and so begins to mount a defense against the foreign protein.
When the mother gets pregnant for the 2nd time with an Rh positive babe, the risks are much higher. In this case, the mother's immune organization may react to the foreign Rh poly peptide carried by the baby. When this happens, the mother'south immune system attacks the baby's crimson blood cells, causing them to rupture. The baby develops a form of hemolytic anemia, which tin be fatal.
To prevent impairment to the babe, the mother can be given injections of Rh allowed-globulin. The Rh immune globulin is an antibody for the Rh cistron: if any of the baby's claret has made its style into the mother's system, the Rh immune-globulin binds to the babe's blood cells. These "borrowed" antibodies will prevent the mother'southward immune system from producing her own.
If a mother demonstrates high levels of Rh antibodies in her claret system, the baby is carefully monitored. If the baby shows signs of distress, a procedure known as an substitution transfusion is sometimes performed to furnish the infant's claret supply.
Blood Type Inheritance
Inheritance patterns of the ABO blood groups - A and B are codominant, so those who inherit type A and type B alleles will take type AB blood. Those with types AO or BO will be type A or B, respectively.
By Kalaiarasy (Own piece of work) [CC-By-SA-three.0 (http://creativecommons.org/licenses/by-sa/three.0)], via Wikimed
Blood Type Genetics
Blood types A and B are co-ascendant, so if the father has blood blazon AA and the mother has blood type BB, the child will have a blood type of AB.
Blood Type O is recessive, so a child will only have this blood blazon if he or she gets ii O claret type genes from his or her parents. If both parents are blood type O, all of the children in the family will have the O claret type. Another way this tin can happen is if the parents are heterozygous for the O allele: this means the mother may be blood type A, but her genotype (the genes she carries) are really AO. In this instance, she expresses the A blood antigen, simply she as well has a gene for the O blood type. If she marries another heterozygote AO carrier, there is a chance that i of their children would inherit both O genes and then accept the O blood type. The chance of this family having a child with the O claret type is 25% - there is a fifty% chance they would have a child with the AO genotype (which would have the A blood type) and a 25% adventure they would have a child with the AA genotype (A blood type).
Blood blazon A is dominant over blood blazon O, and then anyone who has ane A cistron will have the A blood type, even if they carry one type O gene.
Blood type B is dominant over blood type O, so anyone who has one B gene volition take the B blood type, even if they acquit one type O gene.
Rh factor is dominant, so a parents who are have two alleles for Rh factor will have children who are Rh positive. If the parents are heterozygous (having 1 Rh factor allele and i Rh negative allele), they accept a 25% adventure of having an Rh negative child. If both parents are Rh negative, all of their children will be Rh negative.
Questions & Answers
Question: What percentage of African Americans accept blazon A blood?
Answer: According to the American Red Cantankerous, approximately 26% of African Americans have type A blood. Of this percent, 24% are A+ and ii% are A-.
Question: I have type O, RH positive and then are my parents the same blazon?
Answer: Your parents may non have the same blood type yous exercise. The O claret type is double-recessive, and then your parents could be type A, type B, or type O and still have a child with an O claret type.
Question: My mum, my sister and myself have A- blood, but my younger sister has AB. What blood type would our father have had?
Answer: Your begetter probable had Type BO blood. If your mother is type AA and your father is type BO, then the combinations would have resulted in a 50% chance of having type A blood (AO genotype, but O is recessive) and a l% chance of having blazon AB claret (the A and B types are co-dominant and will express themselves at the same fourth dimension).
Question: I recently discovered through our family'due south research that all of the men on my begetter'due south side all had/have O- blood. I'm the son of a genetically identical twin and the other twin had twin boys with O+ blood. First can you lot explain why all of the men in my lineage accept O-blood? And why are my aunt'south son O+? My parents were besides O-.
Answer: The negative Rh factor is recessive, and so it is probable that your female parent and father were both negative. Your uncle was an identical twin to your begetter, which means he was also negative. If your uncle married a woman with a positive factor, then there would exist a 50% chance of each child having a positive cistron at birth, and a 50% chance of having a negative cistron. The positive cistron is dominant.
Question: How did I go an AB+ claret type?
Answer: Blood types A and B are co-ascendant, so if you inherit the A blood type from 1 parent and the B blood type from another parent, it is quite possible to accept blazon AB claret. The positive Rh factor is fairly common and is inherited separately from the AB blazon.
Question: Can a babe get the Rh negative claret type from a grandparent if both parents are positive?
Answer: The Rhesus cistron is a recessive trait, and then a babe can inherit a negative Rh factor if both parents are positive heterozygotes. In this scenario, we could suppose that a grandparent is Rh negative, simply has a husband who is Rh positive. Their child would likely be Rh positive, merely would carry the cistron for a negative rhesus factor (this is chosen a heterozygote - they conduct the gene but do not express the trait). If this child grew upward and married another heterozygote, they would have a 25% probability of having a baby that is Rh negative, a fifty% adventure of having a child who is Rh positive and a carrier of the negative gene, and a 25% chance of having a kid who is positive and does non conduct the negative cistron at all.
Question: My mom is O positive and my begetter was A positive, only I'chiliad O negative, how is this possible?
Answer: This would be possible as type O is recessive, along with the negative blood type. In this instance, your mother would exist O+O- and your father would be A+O-. While they demonstrate only the dominant form of each gene (the positive Rhesus factor for both and the A blood type for your father), each i carries the O- gene and passed it on to you lot.
Question: My blood blazon is AO, and my children'due south father is type O. How does my son have type AB?
Answer: I cannot explain how your child has type AB blood if his biological father has type O blood. Type O blood is double recessive. With a mother having AO claret and the father having OO blood, the possible combinations are AO, AO, OO, and OO. Your children would accept a fifty% run a risk of having type A claret (the AO genetic blazon) and a fifty% run a risk of having type O blood (the OO genetic blazon).
Question: What does it mean if my female parent is RH- claret type and I'one thousand O- blood type? What does this say well-nigh me?
Answer: Your mother'south Rh factor is negative, and so is yours! You don't give your mother'due south blood type, which is typed as a letter (A, AB, B, or O). The O blood type is recessive, so for someone to have the O blood type, they demand two recessive "O" genes. Your mother could be A, B, or O since many people who are type A or B conduct an O gene (A and B are dominant over O).
Question: I accept A+ blood. My male parent was of Sicilian descent. My female parent was of German and Irish descent. Is A+ claret type compatible with my genealogy?
Answer: Aye, the A blood blazon is compatible with your ancestry. The A claret blazon is dominant and is found throughout Europe.
Question: My dad is Syrian with blazon O+ and my mom is African mixed with Indian and carries B+ however my sister and I bear blazon AB+. How is that possible?
Answer: It would not be theoretically possible for a parents with type O and type B to produce children with type AB blood.
Question: I have AB claret. My father's side all accept O blood and my female parent's side all have O blood. Is it possible for two type O parents to have a child with blood type AB?
Answer: It is highly unlikely that two parents with Blazon O claret would produce a child with an AB claret type. Since the O blood type is double recessive, your parents each take OO and OO, which would upshot in all children having type O blood. To obtain Type AB, one parent must have Type A, B, or AB blood and the other parent must likewise have type A, B, or AB blood.
Question: In what part of the world is Rh negative blood blazon near commonly constitute?
Answer: Commonwealth of australia has the highest percent of Rh negative blood, with approximately nineteen% of the population demonstrating a negative factor. The Basque population in Spain has the highest percent of Rh negative blood as an ethnic group, with 21-43% of Basque people demonstrating the negative factor (dependent on location).
Question: I take blood blazon B+ but my female parent is from Deutschland. Is my blood type compatible with my genealogy?
Answer: Yes, it is possible to accept blazon B+ blood with High german ancestry. At that place has been a lot of migration and movement throughout human being history, and currently xi% of Germans have type B blood (9% accept type B+ and 2% have type B-).
Question: If I am AB+ what were my parents?
Answer: Your parents might both exist type AB, one parent might be type AB and the other might exist type A, one parent might be type AB and the other type B, or y'all may have ane parent that is type A and one parent that is type B. Any of these combinations could produce a child that is type AB.
For the + Rh gene, both of your parents are Rh positive.
Question: What is the most common blood blazon in Sweden?
Answer: The most common blood blazon in Sweden is A+. Approximately 37% of the population has this blood blazon. The second nearly mutual blood type in Sweden is O+.
Question: I am an A+ blood blazon and I desire to become married. Which blood group should I marry?
Answer: You lot should not consider someone else's blood blazon when you are considering a future spouse. Claret type has no bearing on wellness or full general compatibility.
Question: Why is Africa excluded from your commodity's world analysis?
Answer: Africa is non excluded from this world analysis. The listing of blood type percentages simply lists the continent where each blood type is the most common. In this synopsis, Type A has the highest prevalence in Europe and Key Europe, Type O has the highest prevalence in the Americas, Type B and Blazon AB have the highest prevalence in Asia.
Type O+ blood is the most common across the continent of Africa, but it does not accept the highest prevalence in the globe of this blood type. 45% of South Africans have Blazon O blood, but this is not the highest prevalence (nearly 100% of Due south Americans have Type O blood). In brusque, the claret types across the continent of Africa are varied and information technology does not take the highest prevalence of any one blood type.
Question: What is the youngest type of claret in humans?
Reply: According to the BBC, type AB is the near recent blood blazon in humans. While the O claret type is universally compatible, it is not likely to be the oldest claret type amongst humans. Both the A and B types may become O with a few mutations, so it is likely that A is the oldest, followed by O or B. There are competing theories on claret type and development. Each type varies by geographical region and ethnicity.
Question: My mom, dad, and sis have type O negative blood, just I have a positive Rh factor., is this possible?
Answer: In general, the negative Rh factor is a double recessive gene. If both of your biological parents are Rh-negative, then you should likewise take a negative Rh factor.
Question: You said blood type A is dominant over O. I'm A- and my son is O+. I don't know what blood type his dad is, though. Do you know if my son is recessive rh-? Does this mean I am recessive rh+?
Reply: The positive Rh trait is always dominant. Since you lot are A-, that means y'all have two Rh negative alleles. Your son's begetter is virtually likely type O+ blood. You conduct an O allele (so your genotype would exist A- O-). In your instance, the O is recessive and so you only display the physical characteristic of the A blood type. Your son inherited one re-create of the O factor from you lot and from his father. He inherited 1 negative Rh factor gene from you and 1 positive Rh factor from his father, and then he displays the Rh positive phenotype (since the positive factor is dominant).
Question: Tin an A- person ever have 2 parents each with O+ claret type?
Answer: A person may inherit a negative Rh factor from two parents with a positive factor, if each parent is heterozygous for this trait. If the mother is +/- and the father is +/-, each will have a phenotype (physical characteristic) of having a positive Rh cistron while still carrying the negative Rh factor cistron. Each child would have a 25% chance of inheriting both Rh - alleles and demonstrating that phenotype. Two parents with type O blood, notwithstanding, would not have a biological kid with type A blood. Type O blood is double recessive.
Question: What percentage of African Americans take type B blood?
Answer: xviii% of African Americans have blazon B+ claret, and one% have B-. Excluding Rh factor, 19% of African Americans carry this claret blazon.
Question: My wife and I have are A/B-, what blood blazon volition our kid accept?
Answer: Your child'southward rH factor volition be negative, equally you and your wife are both negative for this factor. The kid'southward blood type volition depend on which genes they obtain. The A and B blood types are co-dominant. Your kid may obtain the A cistron from both parents (25% chance of A- blood type), the B gene from both parents (25% chance of B- phenotype), or ane of each (50% chance of AB-).
Question: I have a B+ blood blazon. My daughter is O+ and my son is B+. My husband forgot his blood blazon. Tin you figure what blood blazon my husband is?
Answer: The only way to actually know what blood blazon your husband is would exist to accept it typed. The simply thing nosotros know for certain is that you and your husband each carry a gene for the O claret type, which is recessive. Yous probable conduct one cistron for B and ane for O (B is ascendant so your blood type is B). Your married man could exist AO (A blood type), BO (B blood type), or OO (O blood blazon). Your daughter would take inherited ane O allele from each of y'all, resulting in her double-recessive blood blazon. If your husband would like to know his claret type, he should have it typed, as it is impossible to know from your children'due south profiles.
Question: Tin can a person have blood type ABO positive ?
Reply: A person could be type AB or type O, just not type ABO. If a person carried the genotype for type AO or type BO, they would merely express the blood blazon equally type A or type B, as the O claret type is recessive. To demonstrate type O blood, yous must have both copies of the gene.
Question: What percentage of African Americans have blazon AB- claret?
Respond: 0.3% of African Americans have type AB- blood.
Question: What percentage of African Americans have type A- claret?
Respond: According to the American Red Cantankerous, only 2% of African Americans have type A- claret. This would be a rare claret type for this demographic.
Question: I'm from the Greatcoat Verde Islands off the west coast of Africa. I accept AB+ claret. Is this normal?
Answer: According to The Distribution of ABO Claret Group System In Porto Novo Commune Of Cape verde Islands, a enquiry paper by Peter Okeke in 2009, the following claret types were observed (from 750 samples):
320 people were Type O (43%)
226 people were Type A (thirty%)
167 people were Blazon B (22%)
37 people were Blazon AB (5%)
Having Type AB blood is rare, simply not unheard of among the Greatcoat Verde population.
© 2012 Leah Lefler
Samantha Whittaker on Feb 20, 2020:
I have AB, my dad was O- and my mom is O- is it possible for bloodtype O to take a kid with claret type AB
Carol Walker on August 15, 2019:
I accept AB-, my Dad was O-. Is there any mode I tin can observe out where negative RH came from inside the family unit? (
Leah Lefler (author) from Western New York on August 12, 2019:
It is important to realize the Rh blazon and blood type are not linked. Type O claret is the near mutual type of blood in the The states with a positive Rhesus factor. The negative Rh does brand O- blood rarer than O+ blood, but it is still not the rarest blood type. AB- is the rarest, followed past B-, then AB+, so A-. Approximately 6.6% of the US population has blazon O- blood, Stan, and so it is non extremely mutual, but besides not rare. The highest prevalence of O- blood is found in Spain and the UK (9% of the population), though many countries in Europe take a prevalence between 6-nine% of the population. Argentina besides has a very high relative prevalence of people with the O- blood type.
Stan on Baronial 12, 2019:
Does blood type tells united states of america something about our ancestry. I read where O negative is rare except among the Basque population of Iberia and the Celtic tribes of Uk. How likely is O negative blood type connected with Scottish or Basque ancestry?
Leah Lefler (author) from Western New York on May 08, 2019:
It is likely your begetter's genotype is heterozygous, which means he carries one allele for B and i allele for O. You inherited the B from your begetter and an O from your female parent - since B is dominant, you have the B blood type. Your sister would have inherited the O from your father and an O from your female parent, making her blood type O.
Tina on May 06, 2019:
My male parent is b+ and female parent is o+. Simply, why is information technology that i have my fathers blood blazon and my sister has our mothers claret type.
Leah Lefler (author) from Western New York on February 06, 2019:
The O claret blazon is recessive, Reina, and so your mother and male parent both carried the O allele and you happened to get both copies. Your brother'south father also carries the recessive cistron for the O claret blazon, and he carries the aforementioned blood type (despite having a different father). Your parents could have blazon A, B, or O blood and however have a child with type O, since the trait is recessive. The negative Rh gene is besides recessive.
Reina on February 02, 2019:
I am O negative and my ii brothers. One of my brothers has a different father but we accept the same mother. How is it that we have same mother, different father yet have szmd blood type( O negative)?
EmG on April 20, 2017:
I am o positive and considerd African American in America. I was always told about having Indian ancestors on both sides. My female parent is O also and my begetter is A. Shouldn't this exist proof that many African Americans are classified incorrectly in ethnicity and racial classifications. Many of us have hard time claiming our rights as aboriginal people. What can we do to change this and permit people know who they are. The African American has been looking for their ancestral past for generations and this tin can definitely shed low-cal on giving us our missing piece to our heritage puzzle. Thank you!
Leah Lefler (author) from Western New York on June fourteen, 2015:
B positive is definitely a rare blood type! The most common blood type in the globe is blazon O claret. I really know someone with type AB+ blood, Anya - I always tell him how rare that is!
Anya on June 11, 2015:
I am B pos
Information technology is not a common type despite what people say
it is a actually a rare Rh pos claret blazon simply 8 to 9 percent of people have this type
The rarest Rh pos type is AB pos which is 2-three% of people
Leah Lefler (writer) from Western New York on January 22, 2015:
Carmel, there are genetic testing kits available online for tracing beginnings through the Y chromosome. Blazon "Y-Dna" testing kits into google and you will likely be able to determine the general beginnings using just your son's sample. Otherwise, a standard paternity test (also available online) will work, but you will demand a sample from your partner and from your son to determine if your partner is his biological father.
carmel on January 22, 2015:
my son wants to find his dad , I had an affair with a Norwegian and my partner is English language. is in that location whatever way I can find out if its the Norwegian or English language man is my sons begetter, its took me 24 years to inquire this question..
Leah Lefler (writer) from Western New York on April 21, 2014:
Feel gratuitous to link to it, kalinin1158! Thanks for the compliment!
Lana Adler from California on Apr sixteen, 2014:
Bang-up hub! I'd like to link it, if you don't listen. Voted up!
Leah Lefler (writer) from Western New York on March 07, 2014:
Very interesting, Ricky! I remember the pattern of blood types effectually the world is an interesting topic.
ricky on March 01, 2014:
i'chiliad A+ from republic of indonesia
Leah Lefler (author) from Western New York on January 05, 2014:
Thanks, Tim - I have ever loved biology and find it fascinating.
Tim Sandle from London, United kingdom on January 05, 2014:
Very interesting, great hub!
Leah Lefler (author) from Western New York on Baronial 22, 2012:
I call back it is i of the almost important things people can exercise - information technology can absolutely save a life!
Leah Lefler (author) from Western New York on August 19, 2012:
Well, now I'm blushing! Thanks, ausmedus - of course, this article is at present reminding me that I need to donate blood again. It has been a while!
Leah Lefler (writer) from Western New York on August 15, 2012:
That is a great claret type, ausmedus! Universal recipient - yous'll never have to worry if you get into an accident. I'm A+, along with most of the remainder of my family.
Leah Lefler (author) from Western New York on June fourteen, 2012:
It is interesting, isn't it? Kariannr, I wonder if the percentages volition change over time, as people are very mobile now. My ain family has a lot of A blood types, but my aunt is O negative - she got the recessive genes the whole style round!
kariannr from Ogden, Utah on June xiii, 2012:
I thought that was really interesting how you explained different races having dissimilar percentages of negative Rh factor and the different countries where the different blood types are more mutual. I know that probably sounds really dumb, but I'm a medical laboratory scientific discipline student, and any new information is awesome to me.
gresswellliall1959.blogspot.com
Source: https://owlcation.com/stem/Blood-Types-History-Genetics-and-Percentages-around-the-World
0 Response to "When Can I Donate Blood Again After Donating Blood"
Post a Comment