Male nucleus fuses with female nucleus during fertilization in Angiosperms as

Options

A. they possess two sets of different charges
B. they possess two sets of different genome
C. they are different in size and shape
D. hormones compel them to fuse

Answer

To solve the question regarding the fusion of male and female nuclei during fertilization in Angiosperms, we can break down the reasoning step by step:

### Step-by-Step Solution:

1. **Understanding Fertilization in Angiosperms**:
- In angiosperms, fertilization involves the fusion of male and female gametes. The male gamete (pollen) carries the male nucleus, while the female gamete (ovule) contains the female nucleus.

2. **Charge Concept**:
- The video transcript mentions that the male nucleus is considered to have a positive charge (+) and the female nucleus a negative charge (−). This analogy is used to explain the attraction between the two nuclei.

3. **Opposite Charges Attract**:
- The principle of attraction states that opposite charges attract each other. Therefore, the male nucleus (positive) is attracted to the female nucleus (negative).

4. **Evaluating the Options**:
- **Option 1**: They possess two sets of different charges. This is correct because the attraction between the male and female nuclei is due to their opposite charges.
- **Option 2**: They possess two sets of different genomes. This option is not relevant at the time of fusion since it refers to the genetic material after fusion has occurred.
- **Option 3**: They are different in size and shape. While male and female gametes may vary in size and shape, this does not directly relate to the attraction necessary for fusion.
- **Option 4**: A hormone compels them to fuse. Hormones play a role in various reproductive processes but do not directly cause the fusion of the nuclei during fertilization.

5. **Conclusion**:
- The correct answer is that the male and female nuclei possess two sets of different charges, which facilitates their attraction and subsequent fusion during fertilization.

### Final Answer:
The male nucleus fuses with the female nucleus during fertilization in Angiosperms because they possess two sets of different charges.

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