The site of production of ADA in the body is:
a. Erythrocytes
b. Lymphocytes
c. Blood plasma
d. Osteocytes
The answer is the option (b) Lymphocytes
Explanation: Adenosine deaminase (ADA) is primarily produced by lymphocytes, which are a type of white blood cell essential for the immune response. These specialized cells play a crucial role in the secretion of ADA, contributing to various biological processes within the body.