Reproduction which does not involve gametic union is

Options

A. Paarasexual reproduction
B. Apomixis
C. Parthenogenesis
D. Agamospermy.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks for a type of reproduction that does not involve the union of gametes. This means we are looking for a method of reproduction that occurs without the fusion of male and female gametes.

2. **Identifying Types of Reproduction:**
We need to consider different types of reproduction:
- **Asexual Reproduction:** This type of reproduction does not involve gametes. It includes methods like binary fission, budding, and fragmentation.
- **Sexual Reproduction:** This involves the fusion of male and female gametes.

3. **Analyzing the Options:**
- **Parasexual Reproduction:** This is a non-sexual mechanism where genetic material is transferred without meiosis or the formation of sexual structures. It does not involve gametic union.
- **Epomixes:** This is a form of asexual reproduction where new individuals develop without the fusion of gametes. This fits the criteria of the question.
- **Parthenogenesis:** This involves the development of a new individual from a single gamete without fertilization. Although it does not involve the fusion of two gametes, it does involve one gamete.
- **Agamospermy:** This is a form of asexual reproduction where seeds are produced without fertilization, resulting in offspring that are genetically identical to the parent.

4. **Determining the Correct Answer:**
Among the options, **epomixes** is the most appropriate answer as it explicitly states that reproduction occurs without the fusion of gametes. While parasexual reproduction also does not involve gametic union, it is less commonly referred to in the context of asexual reproduction compared to epomixes.

5. **Conclusion:**
The correct answer to the question is **epomixes**, as it is a type of asexual reproduction that does not involve the union of gametes.

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