Question

Given below are two statements :
Statement I : Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced.
Statement II : Both bone marrow and thymus provide micro environments for the development and maturation of T-lymphocytes.
In the light of above statements, choose the most appropriate answer from the options given below :

• A. Both Statement I and Statement II are correct.
• B. Both Statement I and Statement II are incorrect
• C. Statement I is correct but Statement II is incorrect
• D. Statement I is incorrect but Statement II is correct

Answer 1

Answer: (A)

Both Statement I and Statement II are correct.

Answer 2

- Bone marrow is the site of origin for all blood cells, including lymphocytes, making Statement I true.

- Bone marrow is involved in the production of T-lymphocytes , but thymus is essential for their maturation. Therefore, both bone marrow and thymus provide micro-environments for the development and maturation of T-lymphocytes, making Statement II true.

Thus, both statements are correct, and the correct answer is Option 4.