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MCQs

Total Questions : 74 | Page 2 of 8 pages
Question 11. Which of the following govern sporophytic self-incompatibility in Brassica?
  1.    S alleles
  2.    Both (a) and (b)
  3.    Aegilops
  4.    Triticum
 Discuss Question
Answer: Option A. -> S alleles
Question 12. The intervention in the communication system of nematodes offer several possibilities of bio control. Which of the following(s) play(s) a very important role in the host recognition?
  1.    Protein
  2.    Lipid
  3.    Minerals
  4.    Carbohydrate moiety
 Discuss Question
Answer: Option D. -> Carbohydrate moiety
Question 13. Commercial sugarcane is heterozygons with germplasm from
  1.    1-3 Saccharum species
  2.    3-5 Saccharum species
  3.    7-9 Saccharum species
  4.    5-7 Saccharum species
 Discuss Question
Answer: Option B. -> 3-5 Saccharum species
Question 14. The hybrid embryo can be rescued from damage/collapse by growing it
  1.    in artificial medium
  2.    at low water activity
  3.    at low temperature
  4.    at low pH
 Discuss Question
Answer: Option A. -> in artificial medium
Question 15. For increased level of mannitol in transgenic tobacco plants which of the following gene is transferred?
  1.    Mannitol pyrophosphorylase
  2.    Mannitol dehydrogenase
  3.    Mannitol synthease
  4.    Both (a) and (b)
 Discuss Question
Answer: Option B. -> Mannitol dehydrogenase
Question 16. Meristem culture of banana enables
  1.    rapid multiplication
  2.    both (a) and (b)
  3.    elimination of bunch top virus disease
  4.    slow growth
 Discuss Question
Answer: Option B. -> both (a) and (b)
Question 17. Cytoplast (somatic cell hybridization) is the process in which
  1.    two protoplast along with their nuclei fuse
  2.    a normal protoplast along with an enucleated protoplast fuse
  3.    both (a) and (b)
  4.    two enucleated protoplasts fuse
 Discuss Question
Answer: Option C. -> both (a) and (b)
Question 18. Wheat variety Rendezvous, with resistance to eye spot (Pseudo-cercosporella herpotrichoides) derived from Aegilops ventricosa, has a chloroplast genome derived from
  1.    S alleles
  2.    Aegilops
  3.    Triticum
  4.    Both (a) and (b)
 Discuss Question
Answer: Option B. -> Aegilops
Question 19. Human serum albumin in case of transgenic plant is secreted in
  1.    is not secreted out of plant
  2.    transgenic root tissues
  3.    transgenic stem tissues
  4.    transgenic leaf tissues
 Discuss Question
Answer: Option D. -> transgenic leaf tissues
Question 20. Protoplast fusion technique generally involves
  1.    hybridization between two species
  2.    isolation only
  3.    isolation and fusion
  4.    isolation, fusion and culturing
 Discuss Question
Answer: Option D. -> isolation, fusion and culturing

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