5. A young dicot seedling (e.gsoyabean) is subjected tc gravity stimulus by laying it horizontally on a surface the shoot bends upwards and root bends downward. Indicate the reason. (1) […]
Tag: CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
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CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Indole-3-Acetic Acid Structure
The plant hormone indole-3-acetic acid (I.) is ores,: in most plants. The structure of this hormone is related to which one of the following amino acids? (1) Glutamic acid […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Lateral Auxin Redistribution and Phototropic Bending in Oat Coleoptiles
Bending of Oat coleoptiles tip toward source of unilateral light of wavelength 454 is due to (1) lateral distribution of auxin toward shaded area (2) Polar transport of auxin (3) […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Tryptophan Auxotroph in Corn
A tryptophan auxotroph in corn showed 50 times more accumulation of IAA then the normal. Probable explanation for this is (1) There exist another tryptophan independent pathway for IAA synthesis […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
IAA causes cell elongation
In plants IAA causes cell elongation due to – (1) Increase in pH of Apoplast (2) Increase in pH of cytoplasm (3) Decrease in pH of Apoplast (4) Increase in […]
