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Home Biotechnology Special Proteins and Crop Improvement Comments

  • Question
  • 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

  • Correct Answer
  • S alleles 


  • Special Proteins and Crop Improvement problems


    Search Results


    • 1. 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
    • 2. 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
    • 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. 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
    • 5. 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
    • 6. 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
    • 7. 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
    • 8. 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
    • 9. 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
    • 10. Cultivated tomato species (Lycopersicon esculentum) is highly susceptible to

    • Options
    • A. Meloidogyne spp. nematodes
    • B. L. peruviaanum
    • C. both (a) and (b)
    • D. Solarium melongena
    • Discuss


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