Question:

Autogamy can occur in a chasmogamous flower if

Updated On: Jul 6, 2022
  • pollen matures before maturity of ovule
  • ovules mature before maturity of pollen
  • both pollen and ovules mature simultaneously
  • both anther and stigma are of equal lengths
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The Correct Option is D

Solution and Explanation

Autogamy is pollination within a flower. Chasmogamous flowers are those in which anthers and stigma are exposed. For autogamy, in such a flower to take place, pollen and ovule should mature simultaneously and anther and stigma should lie close to each other.
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Notes on sexual reproduction in flowering plants

Concepts Used:

Sexual Reproduction in Flowering Plants

Sexual reproduction in flowering plants takes place or happens when the production of a new organism occurs from two parents by making use of their gametes or sex cells. Both sexual and asexual reproduction can be found in plants. Nearly all flowering plants reproduce sexually. Flowers play a captious role in the process as it carries both the male and female reproductive parts commonly known as androecium and gynoecium respectively.

An individual flower comprises the following parts - 

  • Pedicle
  • Calyx
  • Petals
  • Sepals
  • Stamen
  • Pistil
  • Receptacle