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TLS Online TPP Program

#Question id: 5118

Which of the following is not a mechanism by which cells communicate with each other?

#Unit 5. Developmental Biology

  1. transcription factors are secreted from one cell and taken up by the target cell, where they influence gene expression

  2. cell surface molecules on adjacent cells interact and initiate a signal transduction process that influences cellular behavior and gene expression

  3. cells form gap junctions with adjacent cells, allowing the passage of small molecules

  4. cells secrete proteins and small hydrophilic molecules, which interact with cell surface receptors on target cells and initiate a signal transduction process that influences cellular behavior and gene expression

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TLS Online TPP Program

#Question id: 19823

#Unit 12. Applied Biology

The elicitors are recognized by receptor-like molecules present in resistant plants. This recognition initiates several biochemical reactions such as

1. Phytoalexin biosynthesis

2. Cell wall reinforcement

3. Release of hydrolytic enzymes

4. Rapid cell death

Which of the following is/are correct?
TLS Online TPP Program

#Question id: 19824

#Unit 12. Applied Biology

Several biochemical reactions heading to the production of active oxygen species, phytoalexin biosynthesis occurs due to
TLS Online TPP Program

#Question id: 19825

#Unit 12. Applied Biology

The elicitor produced by a pathogen is which type of molecule 1. Protein encoded by an avirulence gene 2. Products of metabolic activity of this protein Which of them are correct?

1. Protein encoded by an avirulence gene

 2. Products of metabolic activity of this protein

Which of them are correct? 

Which of them are correct?ch of them are correct? 
TLS Online TPP Program

#Question id: 19826

#Unit 12. Applied Biology

 _________are low molecular weight antibiotic polyphenolic or terpenoid compounds produced by plant cells
TLS Online TPP Program

#Question id: 19827

#Unit 12. Applied Biology

What kind of molecules is Phytoalexins

1. Low molecular weight antibiotic

2. High molecular weight antibiotic

3. Polyphenolic

4. Terpenoid compounds

Which of the following is a correct option?
TLS Online TPP Program

#Question id: 19828

#Unit 12. Applied Biology

Accumulation of phytoalexins at the site of infection is followed by