Following are certain facts about the effect of abscisic acid (ABA) on the development and physiological effect of plants: A. ABA promotes leaf senescence independent of ethylene B. ABA promotes […]
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CSIR NET Life Science Previous Year Questions and Solution on EXTENSION OF MENDELIAN PRINCIPLES (62)
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Abscisic Acid Promotes Desiccation Tolerance in Developing Seeds
49. A plant hormone that promotes the acquisition of desiccation tolerance in developing seed is (1) ABA (2) Ethylene (3) IAA (4) GA3. Correct answer: (1) ABA (Abscisic Acid) Explanation: […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Abscisic Acid Degradation in Plants
Abscisic acid can be degraded by (1) Oxidation and reduction (2) Reduction and conjugation (3) Oxidation and conjugation (4) Light and reduction Correct answer: (3) Oxidation and conjugation Explanation: Abscisic […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Key Processes in Seed Development
Which of the following DONOT occur during seed development? (1) Accumulation of storage proteins (2) Synthesis of LEA proteins (3) Desiccation (4) Synthesis of Gibberellic acid Correct answer: (4) Synthesis […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Abundant in Desiccated Seeds and Key for Osmotic Adjustment
46. A protein especially abundant in desiccated seeds and also help in osmotic adjustment (1) LEA (2) HSP (3) Globin (4) alpha-amylase Correct answer: (1) LEA Explanation: LEA (Late Embryogenesis […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Abscisic Acid Induces LEA Protein Formation During Seed Maturation
45. Which hormone induces formation of Late Embryogenesis Abundant (LEA) protein during seed maturation? (1) Gibberellic acid (2) Ethylene (3) Abscisic acid (4) Cytokinin Correct answer: (3) Abscisic acid Explanation: […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
The Role of Abscisic Acid in Seed Dormancy, Storage Reserve Deposition, and Desiccation Tolerance
44. The phytohormone responsible for deposition of storage reserves, prevention of precocious germination, acquisition of desiccation tolerance, and induction of primary dormancy in seeds is (1) Gibberlic Acid (2) Ethylene […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
The Key Hormone Regulating Stomatal Opening and Closing
Which hormone is responsible for opening and closing of stomata? (1) ABA (2) IAA (3) Cytokinin (4) Ethylene Correct answer: (1) Abscisic acid […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Central Plant Hormone for Water Stress Response and Adaptation
42. Which hormone play important role in water stress in plants? (1) Abscisic acid (2) Ethylene (3) Gibberellic acid (4) Auxin Correct answer: (1) Abscisic acid Explanation: Abscisic […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
The Plant Hormone Responsible for Embryo Maturation
41. Hormone responsible for maturation of Embryo is- (1) Abscisic acid (2) Gibberellic acid (3) Ethylene (4) Auxin Correct answer: (1) Abscisic acid Explanation: Abscisic acid (ABA) is […]
