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Home Biotechnology Special Proteins and Crop Improvement Comments

  • Question
  • When the transposon jumps into an otherwise functional gene, it has the effect of


  • Options
  • A. blocking correct transcription
  • B. initiating correct transcription
  • C. propagating correct transcription
  • D. initiating some genetic codes

  • Correct Answer
  • blocking correct transcription 


  • Special Proteins and Crop Improvement problems


    Search Results


    • 1. Wheat variety Rendezvous, with resistance to eye spot (Pseudo-cercosporella herpotrichoides) derived from Aegilops ventricosa, has a chloroplast genome derived from

    • Options
    • A. Aegilops
    • B. Triticum
    • C. Both (a) and (b)
    • D. S alleles
    • Discuss
    • 2. Involvement of sugarcane phytoalexins in red-hot resistance has been observed. The phytoalexin compound is reported to be

    • Options
    • A. 3-deoxyanthocyanidin
    • B. luteolinidin
    • C. apigeninidin
    • D. 5-0 apigeninidin
    • Discuss
    • 3. 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
    • 4. 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
    • 5. 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
    • 6. Human serum albumin in case of transgenic plant is secreted in

    • Options
    • A. transgenic leaf tissues
    • B. transgenic root tissues
    • C. is not secreted out of plant
    • D. transgenic stem tissues
    • Discuss
    • 7. Establishment of embryogenic cell suspensions with high regeneration potential is a pre-requisite for successful

    • Options
    • A. protoplast culture
    • B. detection of nucleic acid sequence
    • C. restriction of fragment length polymorphisms
    • D. microinjection
    • Discuss
    • 8. Which of the following transfers a set of genes encoded in a region called T-DNA of the Ti-plasmid into cells at wound positions?

    • Options
    • A. A. tumefaciens
    • B. L. peruvianum
    • C. L. birsutum
    • D. A. sterilis
    • Discuss
    • 9. ? and ? cyclo dextrins are produced by

    • Options
    • A. transgenic tomato
    • B. transgenic maize
    • C. transgenic potato
    • D. transgenic wheat
    • Discuss
    • 10. For increased level of mannitol in transgenic tobacco plants which of the following gene is transferred?

    • Options
    • A. Mannitol dehydrogenase
    • B. Mannitol synthease
    • C. Both (a) and (b)
    • D. Mannitol pyrophosphorylase
    • Discuss


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