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kristina92293 kristina92293
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Posts: 600
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6 years ago
Which of the following is true?
 a. Both B cells and T cells originate in the bone marrow.
  b. Both B cells and T cells originate in the thymus.
  c. Both B cells and T cells mature in the bone marrow.
  d. Both B cells and T cells mature in the thymus.
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6 years ago
A
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