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Science (086) — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [1] medium thorough-understanding
A flower has its stamens removed before its pollen matures. Which of the following outcomes is most likely? (A) The flower can still undergo self-pollination but not cross-pollination. (B) The flower can still be fertilised if pollen arrives from another flower of the same species. (C) The ovules in the flower will automatically develop into seeds without fertilisation. (D) The pistil will stop producing egg cells.
  1. A The flower can still undergo self-pollination but not cross-pollination.
  2. B The flower can still be fertilised if pollen arrives from another flower of the same species.
  3. C The ovules in the flower will automatically develop into seeds without fertilisation.
  4. D The pistil will stop producing egg cells.
Generated by claude-sonnet-4-6 · 2026-06-26 01:06 · grounding rag
Model Answer

(B) The flower can still be fertilised if pollen arrives from another flower of the same species.

Explanation

Removing stamens eliminates the source of pollen, so self-pollination is impossible. However, the pistil (with ovary, ovules, and egg cells) remains intact. Pollen from another flower of the same species can land on the stigma, travel through the style, and fertilise the egg cell — this is cross-pollination leading to fertilisation. Option C (apomixis) and D (pistil stops producing eggs) are incorrect; the pistil is unaffected by stamen removal.

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.