Examlex
Each individual T and B lymphocyte specifically recognizes only one particular antigen.
Biological Classification
The scientific process of grouping and categorizing organisms into a hierarchical system known as taxonomy, based on their physical and genetic similarities and evolutionary relationships.
Species
A category of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
A-B-O Blood System
A classification system for human blood based on the presence or absence of antigens in red blood cells, instrumental in blood transfusion and organ transplantation practices.
Type O
A blood type in the ABO blood group system that is characterized by the absence of A and B antigens on red cells.
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