Incubation period: In medicine, the time from the moment of exposure to an infectious agent until signs and symptoms of the disease appear. For example, the incubation period of chickenpox is 14-16 days. In biology, the incubation period is the time needed for any particular process of development to take place.
Antibodies are produced by specialized white blood cell called B lymphocytes or B cells when an antigen binds to the B cell surface it stimulate the B cell to divid
