What is the positive and negative rule in math?
Once you have the numerical answer, then you can apply a very simple rule to determine the sign of the answer: When the signs of the two numbers are the same, the answer will be positive. When the signs of the two numbers are different, the answer will be negative.
What does Rh positive and negative mean?
Overview. Rhesus (Rh) factor is an inherited protein found on the surface of red blood cells. If your blood has the protein, you’re Rh positive. If your blood lacks the protein, you’re Rh negative. Rh positive is the most common blood type.
Does Rh determine positive or negative?
What is the Rh factor? The Rh factor is a protein that can be found on the surface of red blood cells. If your blood cells have this protein, you are Rh positive. If your blood cells do not have this protein, you are Rh negative.
What is positive and negative numbers?
Positive numbers are written with no sign or a ‘ ‘ sign in front of them and they are counted up from zero to the right on a number line. Negative numbers are always written with a ‘ ‘ sign in front of them and they are counted down from zero to the left on a number line.
What happens if mother is Rh positive and father is Rh negative?
When a mother-to-be and father-to-be are not both positive or negative for Rh factor, it’s called Rh incompatibility. For example: If a woman who is Rh negative and a man who is Rh positive conceive a baby, the fetus may have Rh-positive blood, inherited from the father.
What determines whether a person is Rh positive or negative?
If your blood has the protein , you’re Rh positive. If your blood lacks the protein, you’re Rh negative. Rh positive is the most common blood type. Having an Rh negative blood type is not an illness and usually does not affect your health.
What does being Rh negative mean to you?
Being rh negative means testing negative for the rhesus gene (D). The term rhesus derives from the rhesus monkey carrying the gene. The rhesus factor was discovered by Karl Landsteiner in 1937, 37 years after he has discovered the major ABO blood groups.
What happens if you are Rh negative?
When this exposure happens, the Rh negative blood will respond by making antibodies that will try to destroy the Rh positive blood cells. This can cause medical problems such as anemia (low red blood cells), kidney failure, or shock.
What does it mean if you are Rh negative?
Being Rh negative means you don’t have a certain protein (“D antigen” or the Rh factor) on the surface of your red blood cells.