How  does inefficient transfer of energy among trophic  levels result in  the typically  high  endangerment status of many top predators?

TLS Online TPP Program

#Question id: 14883

#Unit 4. Cell Communication and Cell Signaling

Where is double negative selection is found during T-cell formation?

TLS Online TPP Program

#Question id: 14884

#Unit 4. Cell Communication and Cell Signaling

Which types of cell shows the middle affinity towards the self proteins? 

TLS Online TPP Program

#Question id: 14885

#Unit 4. Cell Communication and Cell Signaling

Mature T cell is found in thymus in

TLS Online TPP Program

#Question id: 14886

#Unit 4. Cell Communication and Cell Signaling

Secondary lymphoid organ provide sites where lymphocytes encounter antigen, become activated, and undergo clonal expansion and differentiation into effector cells, include

a) spleen

b) lymph node

c) mucosa-associated lymphoid tissue

Which of the following are the effector cells of secondary lymphoid organ?

TLS Online TPP Program

#Question id: 14887

#Unit 4. Cell Communication and Cell Signaling

Secondary lymphoid organ are typically compartmentalized into T-cell areas and B-cell areas, these cells activity are separated  into distinct microenvironments such as

a) T cells are found in the paracortex of the lymph nodes

b) B cells are organized into follicles cells

c) B cells are found in the periarteriolar sheath of the spleen.

d) T cells are found in the periarteriolar sheath of the spleen.

Which of the following is the correct microenvironments of the cells ?

TLS Online TPP Program

#Question id: 14888

#Unit 4. Cell Communication and Cell Signaling

Given below are some cytokines and stimulated cell lines ;

CYTOKINE	CELL LINES STIMULATED
A) IL-1	i) Basophils
B) IL-4	ii) Myeloid lineages
C) IL-5	iii) Platelets
D) IL-6	iv) Megakaryocyte
E) Thrombopoietin	v) Eosinophill

Which one of the following is the correct match between the Interleukines and cell lines ?