‘Second line of defence' is known as

Which of the following immunoglobulins does constitute the largest percentage in human milk ?

Which is incorrect pair on basis of its role in immune system?

Mention the importance of Recombinant-DNA technology in terms of Vaccination?

Physical barrier = .............. and physiological barrier = .............

Assertion : Interferons are a type of'antibodies produced by body cells infected by bacteria.

Reason : Interferons stimulate inflammation at the site of injury.