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The backbone structure of DNA is
Universal Donor
A term often associated with blood type O negative, referring to individuals whose red blood cells can be transfused into persons of any other blood type without causing an adverse reaction.
Blood Type
The classification of human blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells.
Vaccine
A biological preparation that improves immunity to a particular disease, typically containing an agent resembling a disease-causing microorganism.
Antigens
Foreign substances that induce an immune response in the body, especially the production of antibodies.
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