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Special Proteins and Crop Improvement problems

  • 1. Microinjection technique of introducing NA is a

  • Options
  • A. physical method
  • B. biological method
  • C. combination of physical and biological method
  • D. chemical method
    • Discuss
  • 2. Commercial sugarcane is heterozygons with germplasm from

  • Options
  • A. 1-3 Saccharum species
  • B. 3-5 Saccharum species
  • C. 5-7 Saccharum species
  • D. 7-9 Saccharum species
    • Discuss
  • 3. In transgenic plants of Arabidipsis thaliana which of the following gene is transferred for the synthesis of PHB (polyhdroxybutyrate)?

  • Options
  • A. Acetyl Co A reductase
  • B. Polyhydroxybutyrate synthease
  • C. Both (a) and (b)
  • D. Pyrophosphorylase
    • Discuss
  • 4. Which of the following technique can be used to develop nematode resistant plants?

  • Options
  • A. Embryo-rescue
  • B. Mutation
  • C. Non-recombinant DNA
  • D. All of these
    • Discuss
  • 5. Which of the following constituent/(s) is/are added to help in speedy generation of meristem culture in case of Ipomoea batatas improvement?

  • Options
  • A. Auxins
  • B. Cytokinins
  • C. Both (a) and (b)
  • D. Adenine
    • Discuss
  • 6. cDNA clone prepared to stigma mRNA of Brassica oleracea can be used as a probe on DNA digests of segregating populations to recognize

  • Options
  • A. Aegilops
  • B. Triticum
  • C. Both (a) and (b)
  • D. S alleles
    • Discuss
  • 7. Random amplified polymorphic DNA (RAPD) is a method that

  • Options
  • A. stimulate production of sense RNA to compensate
  • B. activate the expression of all genes in a biochemical pathway
  • C. eliminate the expression of all genes in a biochemical pathway
  • D. reveals intra-specific variation and diversity between species
    • Discuss
  • 8. Cultivated tomato species (Lycopersicon esculentum) has a high degree of resistance towards

  • Options
  • A. Meloidogyne spp.nematodes
  • B. L. peruviaanum
  • C. both (a) and (b)
  • D. Solarium melongena
    • Discuss
  • 9. Avermectins (AVM) are macrocyclic lactones which have potent antihelminthic and insecticidal action. They are generally derived from the mycelia of

  • Options
  • A. Streptomyces avermitilis
  • B. B. thrunigiensis
  • C. P. flourescens
  • D. L. peruvianum
    • Discuss
  • 10. Somaclonal variation method refers to

  • Options
  • A. heritable changes
  • B. genetic isolation
  • C. small number of species having limited commercial potential
  • D. large number of plant cells
    • Discuss

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