Match List-I with List-II
| List-I | List-II |
|---|---|
| Cells/antibodies | Sources/relationships |
| (A) IgA | (I) Allergy |
| (B) T-lymphocytes | (II) Colostrum |
| (C) IgE | (III) Thymus |
| (D) Virus-infected cells | (IV) Interferons |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (A) - (II), (B) - (III), (C) - (I), (D) - (IV)
(A) IgA — this matches (II) Colostrum. Colostrum is the yellowish milk produced in the first days of lactation. It has abundant antibodies of the IgA type, which give the infant passive immunity.
(B) T-lymphocytes — this matches (III) Thymus. T-lymphocytes mature in the thymus, which is a primary lymphoid organ.
(C) IgE — this matches (I) Allergy. The antibody IgE is produced in allergy. It makes mast cells release histamine and other chemicals that cause the allergic symptoms.
(D) Virus-infected cells — this matches (IV) Interferons. Virus-infected cells secrete these proteins. They protect the non-infected cells from further viral infection.