Blood Types And Blood Groups

noun a factor that can cause an immune response in certain situations, such as during pregnancy

• The Rh factor is an inherited protein found on the surface of red blood cells.
• Do you know if you have the Rh factor in your blood?
• I heard that Rh factor can affect your blood type.
• The presence or absence of the Rh factor can be like a genetic fingerprint.

noun a classification of blood types into four groups: A, B, AB, and O

• The study of genetics allows us to understand the inheritance patterns of the ABO blood group system.
• My brother and I have different ABO blood groups, which is kind of cool.
• I heard that guy has the rarest ABO blood group, like winning the genetic lottery or something.
• In a way, the ABO blood group can be seen as a genetic signature that distinguishes each individual.