NEET2025Zoology-lymphoid organs
NEET 2025 Zoology Immune System Assertion Reason Question
Type: Assertion Reason-conceptual-Medium-Class 12
After maturation, in primary lymphoid organs, the lymphocytes migrate for interaction with antigens to secondary lymphoid organ(s) / tissue(s) like:
A. thymus
B. bone marrow
C. spleen
D. lymph nodes
E. Peyer’s patches
Choose the correct answer from the options given below:
A
B, C, D only
B
A, B, C only
C
E, A, B only
D
C, D, E only
Correct Answer
Option D
Detailed Explanation
Secondary lymphoid organs include the spleen, lymph nodes, and Peyer's patches, where lymphocytes interact with antigens. Thymus and bone marrow are primary lymphoid organs.
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