When pre B cell receptor passes 1st checkpoint, the B cell then ______ a. rearranges heavy chain genes in chromosome b.

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answerhappygod
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When pre B cell receptor passes 1st checkpoint, the B cell then ______ a. rearranges heavy chain genes in chromosome b.

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When pre B cell receptor passes 1st checkpoint, the B cell then______
a. rearranges heavy chain genes inchromosome
b. gets heavy chain that is associated with surrogate lightchain, goes to surface of B cell to recognize antigen
c. turns off additional heavy chain gene synthesis duringallelic exclusion
d. is instructed to leave bone marrow and go to peripherallymphatic tissues
e. makes the heavy chain (newly synthesized) associatewith light chain proteins (previously synthesized)
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