TLS Online TPP Program

#Question id: 12134


Which of the following is an example of Müllerian mimicry?

#Unit 10. Ecological Principles
  1. Two species of unpalatable butterfly that have the same colour pattern
  2. A day-flying hawkmoth that looks like a wasp
  3. A chameleon that changes its color to look like a dead leaf
  4. Two species of rattlesnakes that both rattle their tails

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TLS Online TPP Program

#Question id: 15451

#Unit 4. Cell Communication and Cell Signaling

T-cell dependent, B-cell activation require many signals except___

TLS Online TPP Program

#Question id: 15450

#Unit 4. Cell Communication and Cell Signaling

T-cell dependent response requires a signal is provided by an activated T cell, which binds to the B cell through,
a) lipopolysaccharide moiety
b) its antigen receptor 
c) A separate interaction between CD40L on the B cell and CD40 (CD154) on the activated TH cell
d) A separate interaction between CD40 on the B cell and CD40L (CD154) on the activated TH cell

TLS Online TPP Program

#Question id: 15449

#Unit 4. Cell Communication and Cell Signaling

Class switch recombination of B-cell that is generated upon recognition of protein antigens and requires the participation of_____

TLS Online TPP Program

#Question id: 15448

#Unit 4. Cell Communication and Cell Signaling

Stimulation of a single B cell would result in the generation of a clone of cells having_____

TLS Online TPP Program

#Question id: 15447

#Unit 4. Cell Communication and Cell Signaling

During development two types of B-cells will be formed:- 
I) T1 cell
II) T2 cell
Some features about T1 and T2 cells given in below;
a) Maturity achieve
b) Found in blood circulation
c) Presence of  Immunoglobulin IgM high and IgD low
d) Expressing CD21 and CD23
e) Cell expressing BAFF-R, Which bind with BAFF survival factor
Match the cell with their correct features;

TLS Online TPP Program

#Question id: 1389

#Unit 4. Cell Communication and Cell Signaling

 Why has C. elegans proven to be a useful model for understanding apoptosis?