Q.1
Which of the following is a gaseous hormone?
  • d) Auxin
  • a) Ethylene
  • b) ABA
  • c) GA
Q.2
ABA is a derivative of adenine purine.
  • a) True
  • b) False
Q.3
The hormone responsible for femaleness in cucumbers is ________
  • a) IAA
  • b) ABA
  • c) GA
  • d) Ethylene
Q.4
Richmond Lang effect is linked to ________
  • a) Cytokinins
  • b) ABA
  • c) GA
  • d) NAA
Q.5
The hormone antagonistic to ABA is_______
  • a) IAA
  • b) Ethylene
  • c) GA
  • d) Kinetin
Q.6
The source of hormone ethylene is________
  • a) oats
  • b) ethephon
  • c) coconut milk
  • d) urine
Q.7
The role of PGRs is a kind of intrinsic control.
  • a) True
  • b) False
Q.8
Which of the following hormone is a stress hormone?
  • a) Ethylene
  • b) ABA
  • c) Auxin
  • d) GA
Q.9
Which of the following hormone is used to induce morphogenesis in plant tissue culture?
  • a) Cytokinins
  • b) Ethylene
  • c) Auxin
  • d) ABA
Q.10
The hormone responsible for enhancement of the respiration rate of fruits thereby leading to its early ripening is ________
  • a) Auxin
  • b) GA3
  • c) Ethylene
  • d) ABA
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