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TLS Online TPP Program

#Question id: 10376

Symbiotic nitrogen-fixing rhizobia release nodulation (Nod) factors as signaling agents as they near the surface of a legume root. The interaction between specific nod factors and their corresponding receptors. Which of the following statements is incorrect?

#Environmental Science
  1. Nod factors are lipochitin oligosaccharides that bind to a specific class of receptor-like kinases (RLKs) in a species-specific manner
  2. The receptor has two heterodimer, Nod factor receptor 1 and 5 (NFR1 and NFR5). Both have three extracellular LysM domains
  3. Nod factor receptors (NFRs) contain extracellular LysM motifs, initiates an interaction with the conserved SYMRK receptor-like kinases containing a leucine-rich repeat (LRR) domain
  4. The interaction between NFR and SYMRK initiates calcium spiking in the cytosol, presumably via a second messenger molecule
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TLS Online TPP Program

#Question id: 37920

#Plant Biotechnology

Statement I: Seed culture plays an important role in orchid propagation.
Statement II: Orchid seeds can be germinated in vitro without fungal association using nutrient media.
TLS Online TPP Program

#Question id: 37921

#Plant Biotechnology

The mechanical method of protoplast isolation is best suited for which type of tissues?
TLS Online TPP Program

#Question id: 37922

#Plant Biotechnology

Which of the following plant materials is commonly used for mechanical isolation of protoplasts?
TLS Online TPP Program

#Question id: 37923

#Plant Biotechnology

The basic principle of mechanical protoplast isolation involves:
TLS Online TPP Program

#Question id: 37924

#Plant Biotechnology

Which of the following statements about the mechanical method of protoplast isolation is INCORRECT?
TLS Online TPP Program

#Question id: 37925

#Plant Biotechnology

Which type of cells is NOT suitable for protoplast isolation by the mechanical method?