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CBSE Class 12: Sexual Reproduction in Flowering Plants - Structure of a Flower

Jun 10, 2015 13:15 IST

    In this video we will learn about the structure of a flower and how the flower formation takes place.

    In this video we will learn about the structure of a flower and how the flower formation takes place.

    • Flower is the site of sexual reproduction in plants.
    • A flower develops from the shoot apical meristem.
    • Sequences of flower development:

    • A flower has 4 whorls

    1. Petals- Generally coloured part of a flower and collectively called as corolla.
    2. Sepals- Green part just below the petals and collectively called as calyx.
    3. Stamen- Male reproductive part and collectively called as androecium.
    4. Pistil- Female reproductive part and collectively called as gynoecium.

    • A flower having these all 4 whorls is known as complete flower otherwise it will be called as incomplete flower.

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