Leukocytes help to protect the body against disease because it because they produce?​

Explanation:

leukocyte cells as neutrophils has the property of phagocytosis. and lymphocytes cells such as B & T lymphocytes in which b-lymphocytes produces antibodies against particular antigen and T Lymphocytes destroy infected cells.

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during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.