Question:
Cleavage polyembryony occurs in :
Cleavage polyembryony occurs in :
Updated On: Jun 20, 2022
- Pinus
- Mini Cyan
- Cycas
- Ephedra
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The Correct Option is A
Solution and Explanation
Polyembryony is of common occurrence among the gymnosperms. This is possible because more than one archegonia are fertilised and more than one zygotes are formed. These develop into embryos, but only one of them succeeds in developing into a complete embryo. In the conifers there is a cleavage polyembryony. In this case all the four cells of the young embryo separate and develop into 4 embryos, but only one complete development and others abort- e.g., Pinus.
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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