Blood types are hereditary. Your specific blood type is determined by the type of blood that your parents have. Remember that your blood type is determined by both your mom and your dad, so just because you have a specific blood type does not mean that your parents are the same or that your children will share your blood type.
There are two types of Rh blood type, a Rh + and a Rh -ve, they are useful in surgery so blood type can be matched. Especially in pregnancy it is beneficial for mother and child to have the same Rh blood type.
B and Rh are two different blood type systems. The B blood type refers to the presence of the B antigen on red blood cells, while the Rh factor (Rh positive or Rh negative) refers to the presence or absence of the Rh antigen. This means someone could have blood type B+ or B-, indicating their blood type in both systems.
They are a type of antigen that some people carry on their red blood cells. They are called "rhesus" because they were initially identified and studied on the red blood cells of rhesus monkeys, then were later also found in humans. If a person has Rh+ blood type they have this antigen, if a person has Rh- blood type they do not. They are important in blood transfusions in that a person with Rh+ blood type can receive either Rh+ or Rh- blood with no problems, but a person with Rh- blood type can only receive Rh- blood (Rh+ blood could kill him when antibodies from his immune system attack the rhesus antigen, causing massive blood clotting). They are important in pregnancy in that a woman with Rh- blood type has a much higher chance of miscarriage if her baby has Rh+ blood type. Note: there are roughly 30 different classes of blood type antigens, not just the familiar A, B, and Rh antigens. Most however are very rare.
A(Rh-)
The baby could have either blood type O positive or A positive. This is because the baby receives one blood type from each parent, and the A gene from the mother could combine with the O gene from the father to produce blood type A, or the baby could inherit the A gene from the mother and the Rh factor from the father to have blood type A positive.
The rH factor of blood determines if it's positive or negative. For instance, O+ is rH positive O-type blood. The universal donor between the AB type and the rH type is the AB positive blood type.
rh negative is not a unique blood type. Rather, it means that the blood is missing the Rh factor that those with Rh positive blood. This is denotated by the word "positive" or "negative" that is said as part of the blood type, after the letter type, A, B, AB, or O.
Rh is not a blood type by itself but is just one part of what makes up a blood type. There are two parts to blood typing: the ABO aspect and the Rh factor. One has blood type A, B, AB, or O, AND then is either Rh positive, or Rh negative. Hence why you hear blood types like A positive, O negative, etc. The positive/ negative is referring to the Rh factor. Rh positive is dominant, so one only needs one Rh positive parent so be Rh positive. Rh negative is recessive. If both parents are Rh negative, the child they have must be Rh negative as well. To know what blood type you could be, you need to know your parents' entire blood type.
O Rh D positive refers to a blood type that is O positive and Rh positive. In this blood type, the individual has O type blood with Rh factor present on the red blood cells. This is one of the most common blood types among the population.
No.
The blood type known as rh defines a particular strain or tendency towards particular traits or abnormalties in newborn babies. To determine a rh blood type, a blood test specifying that rh be tested is required.
Another level of specificity is added to blood type by examining the presence or absence of the Rh protein. Each blood type is either positive "+" (has the Rh protein) or negative "-" (no Rh protein).