0
It refers to the Rh blood group (the blood group system is named Rh because it was first discovered in rhesus monkeys).
In the Rh blood group, the main antigens are D, C, c, E, and e.
The presence or absence of the D antigen determines whether you are considered Rh negative or positive; Rh positive individuals have D, Rh negative people do not.
Rh negative people are sometimes written as having d (as opposed to D) but this is a misnomer because there is no d antigen; d merely denotes the absence of D (just as in the ABO blood group, type O people do not have an O antigen; they merely lack A and B).
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoI'm assuming that what u mean is the +/- symbol found after your blood group. ie AB+.
the symbol actually means another blood antigen called rhesus(Rh) or D group. basically its another form of antigen present on the red blood cells similar to A and B which are more common than the latter. similar to any other groups, matching is required before any blood transfusions can be undertaken. however the only special significance of this group is that a mother with Rh- can produce antibodies against her baby with Rh+ leading to lysis of the fetal RBCs, commonly occurs on the 2nd pregnancy with a Rh- child. thus is a rule of thumb to always screen the mother for Rh- blood type to prevent complication during delivery. it is also highly advisable that females' with Rh- must never be transfused with a Rh+ blood to prevent sensitisation(antibody formation) which again might lead to unwanted complication during pregnancy. however, with current medical intervention Rh isoimmunisation has become a complication of the past.
Wiki User
∙ 9y agoA negative is a blood type. The negative refers to the Rh factor.
Wiki User
∙ 14y agoRh factor
Add your answer:
Earn +20 pts
What can an individual who is blood type AB negative do?
An individual who is blood type AB negative can receive any blood type that is negative. Somebody who is O negative can donate blood to anyone.
What is Blood Type B negative for antibodies?
What is Blood Type B+ Negative for antibodies
Can a mother of 0 negative blood type and a father of A negative blood type have a child with AB blood type?
No they cannot. They can only have a child with type A or type O blood.
What blood types can person with blood type A negative donate?
A person with A negative blood can donate blood to a person with A negative blood and a person with AB negative blood.
What is the difference between negative and positive blood type A?
The Rhesus factor, also known as the Rh factor, is an antigen that exists on the surface of red blood cells. People who have the Rhesus factor are considered to have a positive blood type. Those who don't have the antigen are considered to have a negative blood type.
What can an individual who is blood type AB negative do?
An individual who is blood type AB negative can receive any blood type that is negative. Somebody who is O negative can donate blood to anyone.
If your parents are blood type O negative and b negative does that mean that you will have a negative blood type?
Yes, this is true. 100% of all children will have a negative blood type.
What is Blood Type B negative for antibodies?
What is Blood Type B+ Negative for antibodies
Can a mother of 0 negative blood type and a father of A negative blood type have a child with AB blood type?
No they cannot. They can only have a child with type A or type O blood.
Can negative blood type parent and positive blood type parent have an Rh negative blood type child?
yes, absolutely
What type of blood can A blood safely receive?
Type A or Type O Negative can give to positive Positive can not give to negative
What is Beyonce's blood type?
Beyonce blood type is "O" negative also known as Rh blood negative.
How can two parents with blood type O negative have a child with blood type AB?
They cannot. Two parents with type O negative blood will produce offspring of type O negative.
Can a positive blood type accept blood from a negative blood type?
Yes. It's the negative blood types that can't accept blood from the positives.
What percentage of people have type O negative blood?
About 7% of people have the blood type O negative. Type 0 blood is the most needed blood type as it is the universal blood type. Though those with this blood type must have this blood type and no other.
Can a negative blood type accept blood from a positive type?
Yes. It's the negative blood types that can't accept blood from the positives.
Which blood type is the universal blood type?
Type O negative blood is a universal donor blood type. In normal circumstances, anyone can receive type O negative blood in a transfusion. When it comes to plasma donation, type AB positive is a universal donor.
