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Class 12 · Biology · Chapter 1

Sexual Reproduction in Flowering Plants

Welcome to the most heavily-tested chapter of Class 12 Biology — typically 4-6 NEET questions every year. We follow the complete journey: how a flower builds male gametophytes (pollen) inside its anther through microsporogenesis, builds a female gametophyte (the famous 7-celled, 8-nucleate embryo sac) inside its ovule through megasporogenesis, transfers pollen via wind/water/animals (pollination), filters the right pollen using outbreeding devices and pollen-pistil interaction, performs the angiosperm-unique double fertilisation (syngamy + triple fusion), and finally develops the ovule into a seed and the ovary into a fruit. We close with apomixis and polyembryony — phenomena of huge agricultural importance. By the end you'll have mastered every diagram, every ploidy fact, every NCERT-canonical phrase, and every NEET trap.

15 sections · ~625 min read · Free, no login needed
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Topics in this chapter

  1. 1

    Introduction & Flower — A Fascinating Organ of Angiosperms

    35 min read · Quiz included

  2. 2

    Stamen, Microsporangium & Microsporogenesis

    45 min read · Quiz included

  3. 3

    Pollen Grain — Structure, Development & Significance

    40 min read · Quiz included

  4. 4

    Pistil, Ovule & Megasporogenesis

    45 min read · Quiz included

  5. 5

    Female Gametophyte — The 7-celled, 8-nucleate Embryo Sac

    45 min read · Quiz included

  6. 6

    Pollination — Types & Agents

    45 min read · Quiz included

  7. 7

    Outbreeding Devices, Pollen-Pistil Interaction & Artificial Hybridisation

    45 min read · Quiz included

  8. 8

    Double Fertilisation — Syngamy & Triple Fusion

    40 min read · Quiz included

  9. 9

    Post-fertilisation Events I — Endosperm & Embryo

    40 min read · Quiz included

  10. 10

    Post-fertilisation Events II — Seed & Fruit

    45 min read · Quiz included

  11. 11

    Apomixis & Polyembryony

    35 min read · Quiz included

  12. 12

    Solved Examples (Dedicated Problem Set)

    50 min read · Quiz included

  13. 13

    Board Exam-Pattern Questions

    45 min read · Quiz included

  14. 14

    NEET-Pattern Practice Questions

    40 min read · Quiz included

  15. 15

    Summary & Exam Tips

    30 min read · Quiz included