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Calibrating instruments…
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From a dusting of pollen to a growing pollen tube — reproduction, measured.
The CBSE Class 12 heart of flowering-plant reproduction, made quantitative. Dust pollen onto a nutrient medium and watch the male gametophyte germinate — the intine pushing a pollen tube out through a germ pore — then measure how the sucrose concentration, boron and temperature decide what fraction of grains germinate and how fast their tubes grow.
Beyond the open showcase, subscribed schools get the growing library of Sexual Reproduction in Plants experiments — searchable, tagged by concept and difficulty, and expanding continuously.