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 :
D. Both Statement I and Statement II are correct.
The correct answer is option no. (4) as both statements I and II are correct. In humans, the bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced. Both bone-marrow and thymus provide micro-environments for the development and maturation of Tlymphocytes. Options (1), (2) and (3) are incorrect.
Related: Zoology — Body Fluids and Circulation · All PYQ Banks