Practice question
Question
The genome of a bacterium encodes for 10 different surface antigens, whose expression can be turned 'ON' or 'OFF' randomly and independently. The number of possible antigenic combinations is ___ (NAT)
Explanation
Understanding immune recognition reveals antigen presentation and clonal selection drive specificity. Therefore Option NAT is correct because it demonstrates adaptive immune activation, which underpins key processes in immunology. This mechanism is extensively documented and reinforced by experimental data across multiple model systems and textbook discussions.
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