Special Proteins And Crop Improvement(Biotechnology ) Questions and Answers

Question 1. Which of the following has been confirmed on sugarcane genotypes?
  1.    Cytomegalovirus
  2.    Varicella-zoster virus
  3.    Bacilliform virus
  4.    Erythrovirus
Explanation:-
Answer: Option C. -> Bacilliform virus
Question 2. The tumor phenotype, which can be maintained indefinitely in tissue culture, results from the expression of genes on the
  1.    r-DNA
  2.    T-DNA
  3.    c-DNA
  4.    m-RNA
Explanation:-
Answer: Option B. -> T-DNA
Question 3. Human serum albumin has been synthesized by
  1.    any of the above
  2.    transgenic potato and tobacco plants
  3.    transgenic maize plants
  4.    transgenic wheat plants
Explanation:-
Answer: Option B. -> transgenic potato and tobacco plants
Question 4. Avermectins (AVM) are macrocyclic lactones which have potent antihelminthic and insecticidal action. They are generally derived from the mycelia of
  1.    P. flourescens
  2.    L. peruvianum
  3.    Streptomyces avermitilis
  4.    B. thrunigiensis
Explanation:-
Answer: Option C. -> Streptomyces avermitilis
Question 5. Involvement of sugarcane phytoalexins in red-hot resistance has been observed. The phytoalexin compound is reported to be
  1.    luteolinidin
  2.    apigeninidin
  3.    5-0 apigeninidin
  4.    3-deoxyanthocyanidin
Explanation:-
Answer: Option D. -> 3-deoxyanthocyanidin
Question 6. Which of the following have been used for cryo-preservation of germplasm with 90% tissue survival and 10%plant regeneration that are used in international exchange of germplasm?
  1.    Embryo cultures supplemented with GA3 and coconut milk
  2.    Meristem tip cultures
  3.    Both (a) and (b)
  4.    Embryo cultures
Explanation:-
Answer: Option B. -> Meristem tip cultures
Question 7. Establishment of embryogenic cell suspensions with high regeneration potential is a pre-requisite for successful
  1.    microinjection
  2.    restriction of fragment length polymorphisms
  3.    protoplast culture
  4.    detection of nucleic acid sequence
Explanation:-
Answer: Option C. -> protoplast culture
Question 8. Random amplified polymorphic DNA (RAPD) is a method that
  1.    stimulate production of sense RNA to compensate
  2.    reveals intra-specific variation and diversity between species
  3.    eliminate the expression of all genes in a biochemical pathway
  4.    activate the expression of all genes in a biochemical pathway
Explanation:-
Answer: Option B. -> reveals intra-specific variation and diversity between species
Question 9. Which of the following technique can be used to develop nematode resistant plants?
  1.    All of these
  2.    Non-recombinant DNA
  3.    Embryo-rescue
  4.    Mutation
Explanation:-
Answer: Option A. -> All of these
Question 10. 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?
  1.    L. birsutum
  2.    A. tumefaciens
  3.    A. sterilis
  4.    L. peruvianum
Explanation:-
Answer: Option B. -> A. tumefaciens
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