Question:

An ovule, where chalaza, micropyle and embryo sac lie along vertical line is called

Updated On: Jul 27, 2022
  • campylotropous ovule
  • hemianatropous ovule
  • orthotropous ovule
  • circinotropous ovule
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The Correct Option is C

Solution and Explanation

Orthotropous (or atropous) ovule is the ovule in which chalaza, micropyle and embryo sac lie along a straight line. This type of ovule is found in many families including Polygonaceae, Piperaceae etc.
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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