Vernalisation is the response due to
Vernalisation is the response due to Options (a) high temperature (b) optimum temperature (c) low temperature (d) extreme temperature Correct…
5 years ago
Plant Growth and Development
Thigmotropic movement is best shown by
Thigmotropic movement is best shown by Options (a) movement in roots (b) movement in tendrils (c) insectivorous plants (d) movement…
5 years ago
The plant responds to photoperiods due to the presence of
The plant responds to photoperiods due to the presence of Options (a) phytochromes (b) stomata (c) enzymes (d) phytohormones Correct…
5 years ago
The plant hormone controlling fruit ripening is
The plant hormone controlling fruit ripening is Options (a) ethylene (b) kinetin (c) I.A.A. (d) GA Correct Answer: ethyleneExplanation:Ethylene (gaseous…
5 years ago
The most abundant naturally occurring plant hormone is
The most abundant naturally occurring plant hormone is Options (a) indole-3 acetic acid (b) ABA (c) cytokinin (d) IBA Correct…
5 years ago
The low temperature treatment that shortens the period between sowing and
The low temperature treatment that shortens the period between sowing and the flowering is called Options (a) chemotaxy (b) freezing…
5 years ago
The leaves of Mimosa pudica droop down when touched due to
The leaves of Mimosa pudica droop down, when touched, due to Options (a) nyctinasty (b) seismonasty (c) photonasty (d) epinasty…
5 years ago
The leaf of Mimosa on touching becomes flaccid and droops down This is due
The leaf of Mimosa on touching becomes flaccid and droops down. This is due to Options (a) water goes into…
5 years ago
The ions extruded by auxin during cell wall extension is
The ions extruded by auxin during cell wall extension is Options (a) potassium (b) sodium (c) magnesium (d) hydrogen Correct…
5 years ago
The hormone which prevents seed dormancy is
The hormone which prevents seed dormancy is Options (a) cytokinins (b) auxin (c) gibberellins (d) ethylene Correct Answer: gibberellinsExplanation:Gibberelin is…
5 years ago