AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
The stigma (the terminal, sticky part of the pistil) receives the pollen grain during pollination.
Source: Sexual Reproduction in Flowering Plants, chapter 7, section 7.3.2
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The pistil has three parts: ovary, style, and stigma. The stigma is the topmost, sticky part designed to trap pollen grains — this is the key term examiners expect. Don't write "ovary" (where fertilisation occurs later) or "style" (the passage tube). One word — stigma — earns the mark.