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The nuclei of the sperm and egg fuse as ...

The nuclei of the sperm and egg fuse as a result of

A

Base pair relation of DNA and RNA

B

Formation of hydrogen bonds

C

Mutual attraction caused by differences in electrical charges

D

Attraction of protoplasts of the egg and the sperm

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Gametes**: The sperm and egg are both gametes involved in sexual reproduction. The sperm is the male gamete, while the egg is the female gamete. 2. **Movement of Gametes**: The sperm is released from the pollen tube and moves towards the egg. Simultaneously, the egg moves towards the sperm. This movement is crucial for the fusion of the two gametes. 3. **Attraction Mechanism**: The attraction between the sperm and egg is primarily due to the protoplasts (the living part of the cell) of both gametes. This attraction facilitates their movement towards each other. 4. **Fusion of Nuclei**: Once the sperm reaches the egg, the nuclei of the sperm and egg fuse together. This fusion is a critical step in the process of fertilization, leading to the formation of a zygote. 5. **Conclusion**: The correct answer to the question is that the nuclei of the sperm and egg fuse as a result of the attraction of the protoplast of the egg and sperm. **Final Answer**: The nuclei of the sperm and egg fuse as a result of the attraction of the protoplast of the egg and sperm. ---
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