Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
B-lymphocytes are (1) formed in bone marrow (2) preprocessed in bone marrow (3) preprocessed in liver (4) formed in thymusA) 1, 2 and 3 are correct.
B) 1 and 2 are correct.
C) 2 and 4 are correct.
D) 1 and 3 are correct.
Correct Answer: D
Solution :
Certain cells of the bone marrow produce. B-lymphocytes. These cells mature in the bone marrow their self. The B-cells produce specialized proteins called antibodies and, therefore, generate antibody mediated or humoral immunity. They are preprocessed in liver.
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