Question:
In majority of angiosperms -
In majority of angiosperms -
Updated On: Apr 20, 2025
- egg has a filiform apparatus
- there are numerous antipodal cells
- reduction division occurs in the megaspore mother cells
- a small central cell is present in the embryo sac
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The Correct Option is C
Solution and Explanation
Answer: \(\boxed{\text{Reduction division occurs in the megaspore mother cells}}\)
Explanation:
- In most angiosperms, the development of the female gametophyte (embryo sac) begins when the megaspore mother cell (MMC) undergoes meiosis (reduction division).
- This meiosis results in the formation of four haploid megaspores, out of which usually only one is functional and develops into the embryo sac.
- This is a characteristic process of sexual reproduction in flowering plants (angiosperms).
Why the other options are incorrect:
- Option 1: The synergids, not the egg cell, possess a filiform apparatus.
- Option 2: Typically, there are only three antipodal cells in the embryo sac of angiosperms.
- Option 4: The central cell is large, not small, and contains two polar nuclei.
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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