| a. | Immunoglobulin transmitted through mother’s milk |
| b. | Immunoglobulin injected in a patient |
| c. | Attenuated pathogens introduced in the body |
| d. | Administration of anti-venom |
| (a) | An antitoxin provides active immunity |
| (b) | Vaccine against whooping cough is an example of killed bacterial vaccine |
| (c) | Hepatitis B vaccine has been produced by recombinant DNA technology |
| (d) | Performed antibodies are required to treat the bite of a viper snake |
| Statement A: | Each antibody has antigen-binding sites at its N-terminals. |
| Statement B: | Each molecule of a monomeric antibody contains 4 interchain disulphide bonds. |
| 1. | Both statements (A) and (B) are incorrect. |
| 2. | Both Statements (A) and (B) are correct. |
| 3. | Only statement (A) is correct. |
| 4. | Only statement (B) is correct. |
| Assertion (A): | Colostrum is important for the immunity of new-borns as it protects them against infections |
| Reason (R): | Colostrum is rich in immunoglobin (IgA) |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True, (R) is False |
| 4. | (A) is False, (R) is True |
| Assertion (A): | Recombinant DNA Technology has not contributed much to the greater availability of immunization. |
| Reason (R): | RDT has allowed the production of antigenic polypeptides of pathogens. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True, but (R) is not the correct explanation of (A). |
| 3. | (A) is True, but (R) is False. |
| 4. | (A) is False, but (R) is True. |
| Statement A: | Injection of dead/inactivated pathogens causes passive immunity. |
| Statement B: | Preformed antibodies need to be injected to treat the bite of a viper snake. |