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Biology · SEXUAL REPRODUCTION IN FLOWERING PLANTS

हिन्दी

In flowering plants, the zygote situated at the micropylar end generally divides only after a certain amount of endosperm is formed. What is the primary evolutionary significance of this adaptation?

  1. To prevent polyspermy during double fertilisation
  2. To ensure that the developing embryo receives an assured supply of nutrition
  3. To induce dormancy in the early stages of embryogeny
  4. To facilitate cell wall formation around the antipodal cells

Correct answer · Option 2

To ensure that the developing embryo receives an assured supply of nutrition

Explanation

Most zygotes divide only after a certain amount of endosperm is formed. This is an adaptation to provide assured nutrition to the developing embryo.
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