‘First line of defence' is known as
Antibodies
WBC
Skin
Liver
It’s obvious.
Antigen is a substance which
Identify $X$ from Figure
What are recombinant $DNA$ vaccines ? Give two examples of such vaccines. Discuss their advantages.
Transplantation of tissues/organs fails often due to nonacceptance by the patient’s body. Which type of immune response is responsible for such rejections?
A malfunction of the lymph nodes would most likely interfere with the
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