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Which of the following is mismatched? (a) Pollen grain - microgametophyte (b) Seed - immature sporophyte (c) Ovule - megagametophyte (d) Pollen tube - spores - Biology (Theory)

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Question

Which of the following is mismatched?

Options

  • Pollen grain - microgametophyte

  • Seed - immature sporophyte

  • Ovule - megagametophyte

  • Pollen tube - spores

MCQ
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Solution

Pollen tube - spores

Explanation:

A pollen tube is not a spore. It is a tubular structure that develops from a pollen grain (male gametophyte) after it lands on the stigma. The pollen tube grows through the style to deliver sperm cells to the ovule for fertilization. Spores, in contrast, are haploid reproductive cells that develop into gametophytes and are not involved in forming pollen tubes.

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Chapter 2: Sexual Reproduction in Flowering Plants - TEST YOUR PROGRESS [Page 59]

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Nootan Biology [English] Class 12 ISC
Chapter 2 Sexual Reproduction in Flowering Plants
TEST YOUR PROGRESS | Q 1. 34. | Page 59
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