Sexual reproduction results in off spring that are not identical because it involves

Options

A. The production of gamete by meiosis
B. The production of gamete by mitosis
C. The fusion of male and female gametes
D. The production of spores by meiosis

Answer

**Step-by-Step Solution:**

1. **Understanding Sexual Reproduction**: Sexual reproduction involves two parents contributing genetic material to produce offspring. This results in genetic variation among the offspring.

2. **Identifying the Key Process**: The key process in sexual reproduction is the fusion of gametes. Male gametes (sperm) and female gametes (ovum) come together to form a zygote.

3. **Role of Meiosis**: Gametes are produced through meiosis, which is a type of cell division that reduces the chromosome number by half. This process introduces genetic diversity through recombination and independent assortment.

4. **Genetic Variation**: Since gametes from two different parents are involved, the resulting zygote has a combination of genetic material from both parents. This genetic mixing leads to offspring that are not identical to either parent.

5. **Conclusion**: The reason sexual reproduction results in offspring that are not identical is primarily due to the fusion of male and female gametes, which combines different genetic traits from both parents.

**Final Answer**: The correct option is C: the fusion of male and female gametes.

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