Breeding and Biotechnology Book Back Questions

10th Standard EM

    Reg.No. :
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Science

Time : 00:45:00 Hrs
Total Marks : 30
    4 x 1 = 4
  1. Which method of crop improvement can be practised by a farmer if he is inexperienced?

    (a)

    clonal selection

    (b)

    mass selection

    (c)

    pureline selection

    (d)

    hybridisation

  2. Himgiri developed by hybridisation and selection for disease resistance against rust pathogens is a variety of _______.

    (a)

    chilli

    (b)

    maize

    (c)

    sugarcane

    (d)

    wheat

  3. Which of the following is used to produce products useful to humans by biotechnology techniques?

    (a)

    enzyme from organism

    (b)

    live organism

    (c)

    vitamins

    (d)

    both (a) and (b)

  4. rDNA is a

    (a)

    vector DNA

    (b)

    circular DNA

    (c)

    recombinant of vector DNA and desired DNA

    (d)

    satellite DNA

  5. 4 x 1 = 4
  6. A protein rich wheat variety is ________.

    ()

    Atlas 66

  7. Rice normally grows well in alluvial soil, but _________ is a rice variety produced by mutation breeding that grows well in saline soil.

    ()

    atomita 2

  8. Similar DNA fingerprinting is obtained for __________.

    ()

    identical twins

  9. In gene cloning the DNA of interest is integrated in a __________.

    ()

    vector

  10. 5 x 1 = 5
  11. Sonalika

  12. (1)

    Bacillus thuringienesis

  13. Saccharum

  14. (2)

    Ground nut

  15. TMU – 2

  16. (3)

    Sugarcane

  17. Bt toxin

  18. (4)

    Beta carotene

  19. Golden rice

  20. (5)

    Semi-dwarf wheat

    1 x 2 = 2
  21. Assertion: Colchicine reduces the chromosome number.
    Reason: It promotes the movement of sister chromatids to the opposite poles.
    a) Assertion is correct and reason is wrong
    b) Reason is correct and the assertion is wrong
    c) Both assertion and reason is correct
    d) Both assertion and reason is wrong.

  22. 2 x 2 = 4
  23. Define genetic engineering.

  24. Name the types of stem cells.

  25. 1 x 4 = 4
  26. Differentiate between outbreeding and inbreeding.

  27. 1 x 7 = 7
  28. Discuss the importance of biotechnology in the field of medicine.

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