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GATE 2017-2018 :: GATE Biotechnology

  1. Match the terms in Group I with the ploidy in Group II.
    Group I              Group II
    P. Disome           1. 2n + 1
    Q. Monosome   2. 2n “ 1
    R. Nullisome      3. n “ 1
    S. Trisome          4. n + 1
  2. A.
    P-4, Q-2, R-3, S-1
    B.
    P-4, Q-3, R-1, S-2
    C.
    P-2, Q-3, R-4, S-1
    D.
    P-1, Q-4, R-3, S-2

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  3. Match the products in Group I with the applications in Group II.
    Group I                Group II
    P. Digoxin        1. Muscle relaxant
    Q. Stevioside   2. Anti-cancer agent
    R. Atropine        3. Cardiovascular disorder
    S. Vinblastine  4. Sweetener
  4. A.
    P-1, Q-4, R-3, S-2
    B.
    P-3, Q-2, R-1, S-4
    C.
    P-3, Q-4, R-1, S-2
    D.
    P-2, Q-3, R-1, S-4

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  5. Determine the correctness or otherwise of the following Assertion (a) and Reason (r). 
    Assertion: The production of secondary metabolites in plant cell cultures is enhanced by the addition of elicitors. 
    Reason: Elicitors induce the expression of enzymes responsible for the biosynthesis of secondary metabolites.
  6. A.
    Both (a) and (r) are true but (r) is not the correct reason for (a)
    B.
    Both (a) and (r) are true and (r) is the correct reason for (a)
    C.
    (a) is true but (r) is false
    D.
    (a) is false but (r) is true

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  7. Determine the correctness or otherwise of the following Assertion (a) and Reason (r). 
    Assertion: Plants convert fatty acids into glucose. 
    Reason: Plants have peroxisomes.
  8. A.
    Both (a) and (r) are true but (r) is not the correct reason for (a)
    B.
    Both (a) and (r) are true and (r) is the correct reason for (a)
    C.
    (a) is true but (r) is false
    D.
    (a) is false but (r) is true

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  9. Determine the correctness or otherwise of the following Assertion (a) and Reason (r). 
    Assertion: In direct somatic embryogenesis, embryos are developed without going through callus formation. 
    Reason: This is possible due to the presence of pre-embryonically determined cells.
  10. A.
    Both (a) and (r) are true but (r) is not the correct reason for (a)
    B.
    (a) is false but (r) is true
    C.
    (a) is true but (r) is false
    D.
    Both (a) and (r) are true and (r) is the correct reason for (a)

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  11. Match the entries in Group I with the process parameters in Group II.
    Group I                         Group II
    P. Clark electrode    1. Liquid level
    Q. Redox probe      2. Dissolved oxygen concentration
    R. Load cell              3. Vessel pressure
    S. Diaphragm gauge  4. pH (anaerobic process)
  12. A.
    P-2, Q-1, R-3, S-4
    B.
    P-4, Q-2, R-3, S-1
    C.
    P-2, Q-4, R-1, S-3
    D.
    P-2, Q-1, R-4, S-3

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  13. Match the downstream processes in Group I with the products in Group II.
    Group I                         Group II
    P. Solvent extraction   1. Lactic acid
    Q. Protein-A linked affinity chromatography 2. Penicillin
    R. Extractive distillation   3. Monoclonal antibody
    S. Salting out                 4. Lipase
  14. A.
    P-2, Q-3, R-1, S-4
    B.
    P-4, Q-1, R-2, S-3
    C.
    P-4, Q-1, R-3, S-2
    D.
    P-2, Q-4, R-1, S-3

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  15. Determine the correctness or otherwise of the following Assertion (a) and Reason (r). 
    Assertion: Cell mass yield of a methylotrophic yeast is more on methanol compared to glucose. 
    Reason: Methanol has a greater degree of reductance compared to glucose.
  16. A.
    Both (a) and (r) are correct and (r) is the correct reason for (a)
    B.
    (a) is correct, (r) is false
    C.
    (a) is false, (r) is correct
    D.
    Both (a) and (r) are correct but (r) is not the correct reason for (a)

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  17. A disease is inherited by a child with a probability of 1/4. In a family with two children, the probability that exactly one sibling is affected by this disease is
  18. A.
    1/4
    B.
    3/8
    C.
    7/16
    D.
    9/16

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  19. Match the organisms in Group I with the entries in Group II.
    Group I                Group II
    P. Clostridium   1. Rods with teichoic acid in the cell wall
    Q. Escherichia   2. Rods with endospores
    R. Vibrio              3. Helical rods with flagella
    S. Bacillus           4. Rods with LPS in the outer membrane
                                 5. Curved rods with polar flagella
  20. A.
    P-2, Q-4, R-5, S-1
    B.
    P-2, Q-1, R-5, S-4
    C.
    P-5, Q-4, R-2, S-3
    D.
    P-3, Q-2, R-1, S-4

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