When offspring is produced by a single parent with or without the involvement of gamete formation, the reproduction is called

Options

A. Asexual
B. Sexual
C. Orthenogenetic
D. Either (1) or (2)

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about a type of reproduction where offspring are produced by a single parent, with or without the involvement of gamete formation.

2. **Identifying the Types of Reproduction**:
- **Asexual Reproduction**: This involves only one parent and does not require the fusion of gametes. The offspring are genetically identical to the parent.
- **Sexual Reproduction**: This involves two parents and the fusion of male and female gametes to form a zygote, leading to genetic variation in the offspring.
- **Orthogenesis**: This is a concept related to evolution, where organisms evolve in a specific direction due to internal forces, not a type of reproduction.
- **Either One or the Other**: This option suggests that both asexual and sexual reproduction could apply, which is not accurate based on the question.

3. **Analyzing Asexual Reproduction**:
- In asexual reproduction, a single parent produces offspring without gamete formation. This can occur through processes like mitosis, where the parent cell divides to form two new cells.

4. **Conclusion**: Since the question specifies reproduction by a single parent without the involvement of gametes, the correct answer is **asexual reproduction**.

5. **Final Answer**: The reproduction is called **asexual reproduction**.

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