Lesson eLearning

Which of the following is the primary lymphoid organ where B‑lymphocytes mature?

easy MCQ 1 mark Class 12 · Biology · Human Health and Disease
  1. Thymus
  2. Spleen
  3. Bone marrow
  4. Lymph node
Answer
Bone marrow

The correct answer is Bone marrow — Select the remaining option 'Bone marrow' as the correct answer.

Step-by-step solution

  1. Read the question and identify that it asks for the primary site of B‑cell maturation.
  2. Recall that B‑cells develop in the bone marrow, while T‑cells develop in the thymus.
  3. Eliminate thymus, spleen and lymph node as they are secondary or for T‑cells or immune response.
  4. Select the remaining option 'Bone marrow' as the correct answer.
Common mistake: Choosing thymus, which is for T‑cell maturation

Concept tested: Site of B‑cell maturation

Published · How this solution was prepared and checked

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