Question

Select the correct statement with respect to diseases and immunisation.
(a) If due to some reason B-and T-lymphocytes are damaged, the body will not produce antibodies against a pathogen.
(b) Injection of dead / inactivated pathogens causes passive immunity.
(c) Certain protozoans have been used to mass produce hepatitis B vaccine.
(d) Injection of snake antivenom against snake bite is an example of active immunisation.

Answer 1

Injection of dead / inactivated pathogens causes passive immunity. statement with respect to diseases and immunisation.

Answer 2

Answer:

c is the correct answer.

Explanation:

When we get the disease, antigens enter into our body and our body produces antibodies for the same. Immunization is a process in which our body is alerted by injecting dead or inactivated antigens. Thus our body produces antibodies against the same and creates passive immunity. Since our system is ready, in future if original antigen enters too our system can defend very easily with the antibodies already produced.