Question:
In angiosperm all the four microspores of tetrad are covered by a layer which is formed by :-
In angiosperm all the four microspores of tetrad are covered by a layer which is formed by :-
Updated On: Jun 23, 2024
- Pectocellulose
- Callose
- Cellulose
- Sporopollenin.
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The Correct Option is B
Solution and Explanation
Callose wall surrounds the sporocytes during the meiotic stage. It provides an isolation barrier sealing off one meiotic cell (megaspore mother cell) from another. Hence it acts as a molecular filter isolating the developing microspores from the influence of the surrounding diploid tissue or sister spores.
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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