An important advantage of having two gene loci (? and ?) for the light chain is
a. that the likelihood of a successful rearrangement of light-chain genes increases.
b. that immunoglobulins are homogeneous and not heterogeneous in mature B cells.
c. that different effector functions are conferred by the two different light-chain loci.
d. that surrogate light-chain transcription cannot compete with ? and ? transcription and enables B-cell development.
e. all of the above.
A
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