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TLS Online TPP Program

#Question id: 10362

Bacteria can convert atmospheric nitrogen into ammonia, Several form symbiotic associations with higher plants is given below;

               HOST PLANT                                                                          N-FIXING SYMBIONTS

A) Gunnera                                                                            i) Frankia

      B) Azolla                                                                                ii) Acetobacter

C) Leguminous                                                                     iii) Azospirillum

             D) Actinorhizal                                                                      iv) Nostoc

             E) Sugarcane                                                                         v) Anabaena

             F) Miscanthus                                                                       vi) Sinorhizobium


Which of the following combination with the host plants and n-fixing symbionts is CORRECT?

#Bio-Informatics

  1. A-iv, B-ii, C-vi, D-i, E-iii, F-v

  2. A-v, B-iv, C-vi, D-iii, E-ii, F-i
  3. A-iv, B-v, C-vi, D-i, E-ii, F-iii   
  4. A-iii, B-i, C-vi, D-ii, E-v, F-vi
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TLS Online TPP Program

#Question id: 10376

#Plant Biotechnology

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?
TLS Online TPP Program

#Question id: 10384

#Plant Biotechnology

Nitrogenase enzyme complex catalyzes the molecular nitrogen fixation, this enzyme not only fixes nitrogen but also perform other reactions given below. Which one is not performed by nitrogenase?
TLS Online TPP Program

#Question id: 10334

#Plant Biotechnology

N2 combines with hydrogen to form ammonia under elevated temperature (about 200°C) and high pressure (about 200 atmospheres) and in the presence of a metal catalyst (usually iron). The extreme conditions are required to overcome the high activation energy of the reaction. This nitrogen fixation reaction, called
TLS Online TPP Program

#Question id: 10335

#Plant Biotechnology

plants can store high levels of nitrate, and they can translocate it from tissue to tissue without deleterious effect. Yet if livestock or humans consume plant material that is high in nitrate, they may suffer with,
TLS Online TPP Program

#Question id: 10338

#Plant Biotechnology

Nitrate from the soil solution actively absorb by Plant roots via several low- and high-affinity transporters known as
TLS Online TPP Program

#Question id: 10340

#Plant Biotechnology

There several charecteristics of nitrate reductase, which of the following properties of nitrate reductase is incorrect?