Multiple Choice
Which of the following is not paired with its correct complement?
A) N nucleotides: more abundant in rearranged heavy-chain genes than in rearranged light-chain genes
B) second checkpoint in B-cell development: assembly of a functional B-cell receptor
C) receptor editing: exchange of light chain for one that is not self-reactive
D) first checkpoint in B-cell development: selection by the pre-B-cell receptor
E) large pre-B-cell stage: constitutive expression of RAG-1 and RAG-2 proteins.
Correct Answer:

Verified
Correct Answer:
Verified
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