Eight different blood types are found within the human population: O positive, O negative, A positive, A negative, B positive, B negative, AB positive and AB negative. Blood type is an inherited factor and is determined ... More »

The four different groups of blood are classified as group A, group B, group AB and group O, according to the American Red Cross. Each group contains two blood types, a plus type and a minus type. For example, blood grou... More »

www.reference.com Health Diagnostics & Imaging

Types of blood include blood group A, B, AB and O, as MedicineNet details. Each person has one of these blood types, and each person has either Rh-positive or Rh-negative blood. More »

The eight types of blood are A negative, A positive, B negative, B positive, AB negative, AB positive, O negative and O positive. The type of blood a person has depends on whether or not two different antigens are presen... More »

www.reference.com Science Human Anatomy Blood

Type AB positive people have personality traits affected by the genetic mutation of combining blood types A and B. Although type AB may enjoy being around other people and are friendly and open, there is a deep seated fe... More »

The blood types and their global prevalence are A+ at 28.3 percent, A- at 3.5 percent, B+ at 20.6 percent, B- at 1.4 percent, AB+ at 5.1 percent, AB- at 0.5 percent, O+ at 36.4 percent and O- at 4.3 percent. The rarity o... More »

www.reference.com Science Human Anatomy Blood

Humans have four different blood types: A, B, AB and O. Each of these blood types is also labeled positive or negative, depending on whether the red blood cells carry the Rh factor on their surfaces. Rh negative blood ma... More »