Botany - Plant Tissue Culture Model Question Paper

12th Standard EM

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Biology

Time : 01:30:00 Hrs
Total Marks : 50
    6 x 1 = 6
  1. Micro propagation involves

    (a)

    vegetative multiplication of plants by using micro-organisms.

    (b)

    vegetative multiplication of plants by using small explants.

    (c)

    vegetative multiplication of plants by using microspores.

    (d)

    Non-vegetative multiplication of plants by using microspores and megaspores.

  2. The time duration for sterilization process by using autoclave is ______ minutes and the temperature is _______

    (a)

    10 to 30 minutes and 125° C

    (b)

    15 to 30 minutes and 121° C

    (c)

    15 to 20 minutes and 125° C

    (d)

    10 to 20 minutes and 121° C

  3. Virus free plants are developed from

    (a)

    Organ culture

    (b)

    Meristem culture

    (c)

    Protoplast culture

    (d)

    Cell suspension culture

  4. The prevention of large scale loss of biological interity

    (a)

    Biopatent

    (b)

    Bioethics

    (c)

    Biosafety

    (d)

    Biofuel

  5. Identify the group of scientists who developed the intergenic hybrid - the pomato.

    (a)

    Yamada et al.

    (b)

    Horsh et al.

    (c)

    Takebe et al.

    (d)

    Melchers et al.

  6. A widely used fusogen in protoplast culture is ________

    (a)

    Polymethyl glycol

    (b)

    Polyethylene glycol

    (c)

    Polyethylene chloride

    (d)

    Polyvinyl chloride

  7. 4 x 1 = 4
  8. Solidifying agent

  9. (1)

    Sucrose

  10. Cryoprotectant

  11. (2)

    Agar

  12. Growth hormone

  13. (3)

    IAA

  14. Fusogen

  15. (4)

    Agar

    6 x 2 = 12
  16. How will you avoid the growing of microbes in nutrient medium during culture process? What are the techniques used to remove the microbes?

  17. Write the various steps involved in cell suspension culture.

  18. What do you mean Embryoids? Write its application.

  19. Define tissue culture.

  20. Define sterilization.

  21. Name any four culture media used in plant tissue culture.

  22. 6 x 3 = 18
  23. Give the examples for micro propagation performed plants .

  24. Explain the basic concepts involved in plant tissue culture

  25. Compare Redifferentiation with Dedifferentiation.

  26. Mention any three macronutrients and micro nutrients used in MS medium.

  27. Name any three secondary metabolites obtained from plants and mention their medicinal aspects.

  28. What is cybrid?

  29. 2 x 5 = 10
  30. Give an account on Cryopreservation.

  31. Write the protocol for artificial seed preparation.

*****************************************

TN 12th Standard EM Biology free Online practice tests

Reviews & Comments about 12th Biology - Botany - Plant Tissue Culture Model Question Paper

Write your Comment