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Question:
In angiosperms, the fusion of male gamete with the secondary nucleus is considered as "Second fertilization" because
In angiosperms, the fusion of male gamete with the secondary nucleus is considered as "Second fertilization" because
Updated On: Jul 25, 2024
- It is fusion of two nuclei
- Secondary nucleus is a sister nucleus of the egg
- It takes place in embryo sac
- It takes place after pollination
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The Correct Option is B
Solution and Explanation
When the second male gamete fuses with the diploid secondary nucleus to form the triploid primary endosperm nucleus (PEN). This is called triple fusion. Since each of the polar nuclei is sister nucleus of the egg and it is called second fertilisation
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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
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