Multiple Choice
B and T cells become activated and divide to produce identical cells when _____.
A) activated by an antigen
B) major histocompatibility genes are expressed
C) activated by the presence of cancerous cells
D) plasma cells begin to produce and secrete antibodies
E) killer T cells bind to any pathogen
Correct Answer:
Verified
Correct Answer:
Verified
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Q11: Which immune system(s)are absent in individuals with