Genes that control coat color in mammals represent some of the best early examples of genes with multiple alleles exhibiting different phenotypes. A classic example is the C gene in hamsters. Three of the known alleles of this gene are C, c^a and c^k. Each supplies a different amount of black pigment to the coat hair. The phenotypes of three different homozygous strains are as follows.

Based on the concepts of recessivity, determine whether ck and ca were dominant or recessive alleles by crossing the true-breeding albino hamsters  with the true-breeding sepia hamsters. From the resulting F1 progeny phenotype, what would be the ratio of F2 phenotype

TLS Online TPP Program

#Question id: 20321

#Unit 4. Cell Communication and Cell Signaling

Quorum sensing receptors are-

a. histidine sensor kinases

b. cytoplasmic transcription factors

c.  tyrosine kinases

TLS Online TPP Program

#Question id: 20320

#Unit 4. Cell Communication and Cell Signaling

What processes controlled by quorum sensing-

a. Bioluminescence

b. Production of virulence factors 

c. Formation of biofilms

d. Competence for uptake of DNA

e. Antibiotic production

Which one of the following combinations of above statements is correct?

TLS Online TPP Program

#Question id: 20319

#Unit 4. Cell Communication and Cell Signaling

What is the purpose of quorum sensing?

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?