One form of receptor desensitization can be mediated by negative feedback involving phosphorylation of the receptor itself by a kinase activated downstream of a second messenger. The phosphorylated receptor likely:

TLS Online TPP Program

#Question id: 20318

#Unit 4. Cell Communication and Cell Signaling

Which statement is not correct about bacterial quorum sensing?

TLS Online TPP Program

#Question id: 19493

#Unit 4. Cell Communication and Cell Signaling

Enhanced disease susceptibility is caused in

TLS Online TPP Program

#Question id: 19492

#Unit 4. Cell Communication and Cell Signaling

Given below are certain statements regarding plant-pathogen interaction;

a) P/MAMPs binds on to the pattern recognition receptor (PRR) activates the plant defence PTI

b) PTI usually stronger than ETI

c) Avr is resistance gene carry by Solanum lycopersicum (tomato) act against Avrpto effector of  pathogen Pseudomonas

d) Pathogen secreted effector molecules recognized by R-gene initiate a defence mechanism known as effector-triggered immunity

Which one of the following combination of above statement is correct?

TLS Online TPP Program

#Question id: 19491

#Unit 4. Cell Communication and Cell Signaling

R gene‐mediated defense also known as__

TLS Online TPP Program

#Question id: 19490

#Unit 4. Cell Communication and Cell Signaling

Successful pathogens that evade detection in turn impose selection on host, these selection for

TLS Online TPP Program

#Question id: 19313

#Unit 4. Cell Communication and Cell Signaling

Match the following effector molecules with their pathogen

     

Pathogen	Effector molecules	Function
A) Fusicoccum amygdali	i) HC-toxin	a) inhibits salicylic acid (SA)-mediated defense responses
B) Cochliobolus carbonum	ii) Coronatine	b) Constitutively activates the plasma membrane H+-ATPase
C) Pseudomonas syringae	iii) Fusicoccin	c) Inhibits histone deacetylase activity
		d) Opening of stomata