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  • Question
  • Gypsum is beneficial for


  • Options
  • A. phosphorus enriched soil
  • B. water logged soil
  • C. alkaline soil
  • D. saline soil

  • Correct Answer
  • alkaline soil 


  • General Plant Biotechnology problems


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    • 1. Archaeabacteria differ from the true bacteria as they have

    • Options
    • A. different cell membrane lipids
    • B. cell wall composition
    • C. ribosomal RNA structure
    • D. growth not inhibited by antibiotics
    • Discuss
    • 2. The colour of flower is due to the presence of

    • Options
    • A. chlorophyll
    • B. xanthophylls
    • C. florigen
    • D. chromoplast or anthocyanin
    • Discuss
    • 3. Rice can grow in water submerged soil because the plants

    • Options
    • A. have spongy roots
    • B. can oxidize the micro-environment around their roots and thus able to absorb oxygen
    • C. are adapted to enable roots to ward off toxic products
    • D. all of the above
    • Discuss
    • 4. Triticale, the first man made cereal is an example of

    • Options
    • A. artificial allopolyploidy
    • B. artificial autopolyploidy
    • C. man made crossing
    • D. artificial evolution
    • Discuss
    • 5. Mycorrhizae are symbiotic associations between

    • Options
    • A. algae and fungi
    • B. root and fungi
    • C. bacteria and root
    • D. bacteria and fungi
    • Discuss
    • 6. Which of the following aid plants in the acquisition of nitrogen from nitrogen gas of the atmosphere?

    • Options
    • A. Bacteria
    • B. Algae
    • C. Nematodes
    • D. Moulds
    • Discuss
    • 7. A major plant macronutrient found in nucleic acids and proteins is

    • Options
    • A. calcium
    • B. nitrogen
    • C. sulphur
    • D. iron
    • Discuss
    • 8. In the Calvin cycle of C3 plants, which molecule is the acceptor of CO2?

    • Options
    • A. Erythrose-4-phosphate
    • B. Ribulose-l,5-diphosphate
    • C. Ribose-5-phosphate
    • D. Alpha-ketoglutarate
    • Discuss
    • 9. What is the metal ligand in chlorophylls?

    • Options
    • A. Copper (Cu)
    • B. Iron (Fe)
    • C. Magnesium (Mg)
    • D. Manganese (Mn)
    • Discuss
    • 10. Which of the following molecule is produced from the fixation of CO2 in C4 plants?

    • Options
    • A. Malate
    • B. Oxaloacetate
    • C. Pyruvate
    • D. Alpha-ketoglutarate
    • Discuss


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