Tag: CSIR NET Life Science Previous Year Questions and Solution Plant Hormones

Mobilization of starch by alpha amylase activity is induced by (1) Auxin                         (2) Cytokinin (3) Gibberellic acid            (4) Ethylene Correct answer: (3) Gibberellic acid. Gibberellic acid (GA) stimulates the […]

Which one of the following statements related to components/features of senescence in plants is INCORRECT? (1) Programmed cell death in plants may generate functional cells or tissues. (2) Senescence can […]

13. Transgenic tobacco plants over-expressing isopentenyl transferase (IPT) under the control of promoter region of Senescence Associated Receptor kinase (P SARK) were exposed to drought for 15 days followed by […]

Agrobacterium tumefacienscauses crown gall diseases in dicot plants. Which phytohormone genes are present of T-DNA? (1) Auxin and cytokinin (2) Auxin only (3) Cytokinin only (4) Cytokinin and Gibberellic acid […]

A transgenic lettuce plant was generated by over expressing isopentenyl transferase (IPT) gene under the control of the promoter of senescence activator gene (SAG12). Following are some statements regarding this […]

Which one of the following statements is correct for the transport of cytokinin in plants? (1) It takes place only from root to shoot. (2) it takes place only from […]

The plant hormones, auxins and cytokinins, and their interactions play an important role in regulating apical dominance_ The following figure represents a” experiment related to the study of gene interactions […]

The following statements are made regarding cytokinin (CE) biosynthesis plants: A.Trans-zeatin (tZ) and iso-pentenyladenile (iP) are common active forms of isoprenoid CKs. B. CKs are present as nucleoside and glycosidic […]

6.Cytokinin synthesis is maximum in (1) Roots                (2) Leaves (3) Shoots tip         (4) Fruits Cytokinin synthesis is maximum in: (1) Roots. Correct concept In most vascular plants, cytokinins are synthesized primarily in […]