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Plant Growth and Development

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Advanced Botany

Plant Growth and Development
Organisms and Populations
Ecosystem
Biodiversity and Conservation
Environmental Issues
Microbes in Human Welfare
Strategies for Enhancement in Food Production
Molecular Basis of Inheritance
Principles of Inheritance and Variation
Sexual Reproduction in Flowering Plants
Reproduction in Organisms
The Living World
Respiration in Plants
Photosynthesis
Mineral Nutrition
Transport in Plants
Cell Cycle and Cell Division
Cell-The Unit of Life
Anatomy of Flowering Plants
Morphology of Flowering Plants
Plant Kingdom
Biological Classification
  1. If a tree, flowers thrice in a year (Oct., Jan. and July) in Northern India, it is said to be
    1. photosensitive but thermoinsensitive
    2. thermosensitive but photoinsensitive
    3. photo and thermosensitive
    4. photo and thermoinsensitive
Correct Option: D

In northern India, during these months maximum variation in light intensity, duration and temperature is observed. Hence, only plants that are photo-and thermoinsensitive can flower during these months.


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