Biology / Unit 13 Bio 3275 short lesson, about 20 seconds
Antigen Specificity and Receptor Diversity
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The idea
Adaptive immune cells carry receptors generated through genetic recombination to recognize one antigen shape each, together giving the population an enormous recognition range.
In practice
Only the small lymphocyte subset whose receptor matches an invading antigen gets activated during infection.
Where people slip
Receptor diversity forms before any infection — the body does not custom-build a receptor for a specific threat.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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