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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 answer: photo and thermoinsensitive

Solution

Flowering in October, January, and July occurs under very different photoperiods and temperatures. Since the plant flowers repeatedly regardless of these seasonal changes, it is considered insensitive to both light and temperature cues.

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