Teaching MPPSC Assistant Professor Mock Test Series 2025 Life Sciences Cell Communication and Cell Signaling Immune System
There are number of specific T cell surface molecules involved in various functions of adaptive immune response. Column X represents a list of T cell surface molecules and Column Y with the possible functional characteristics:
|
Column X |
Column Y |
||
|
A. |
T cell receptor |
(i) |
binds to CD40 on B cells and APCs and triggers activation of APCs and activation/differentiation of B cells. |
|
B. |
CD28 |
(ii) |
binds to MHC class I molecules and restricts I cytotoxic cells to recognizing only peptide presented on MHC class I |
|
C. |
CD8 |
(iii) |
binds to B7 - 1, 2 or CD80/86 on B cells and APCs, which triggers T cell activation. |
|
D. |
CD154 |
(iv) |
consists of two poly-peptide chains α and β and some consist of poly-peptide chains γ and δ. |
Which of the following option has all correct matches?
1
A - (i); B - (ii); C - (iii); D - (iv)
2
A - (iv); B - (i); C - (ii); D - (iii)
3
A - (iii); B - (iv); C - (i); D - (ii)
4
A - (iv); B - (iii); C - (ii); D - (i)