Occurence of more than four spores in a tetrad is called

Options

A. Polysiphony
B. Polyspermy
C. Polyspory
D. Poly embryony

Answer

To answer the question regarding the occurrence of more than four spores in a tetrad, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Term "Tetrad":**
- A tetrad refers to a group of four spores that are formed during the process of meiosis in plants. This is a standard structure in many fungi and plants.

2. **Identifying the Key Concept:**
- The question specifically asks about the occurrence of more than four spores in a tetrad. This indicates that we are looking for a term that describes a condition where multiple spores (more than four) are produced.

3. **Analyzing the Options:**
- The options provided are:
- A) Polysiphony
- B) Polyspermy
- C) Polyspory
- D) Polyembryony
- We need to analyze each option to determine which one relates to the production of many spores.

4. **Defining Each Option:**
- **Polysiphony:** Refers to organisms with multiple tubes or siphons; not related to spores.
- **Polyspermy:** Refers to an egg fertilized by multiple sperm; not related to spores.
- **Polyspory:** Refers to the condition of producing many spores; this is relevant to our question.
- **Polyembryony:** Refers to the formation of multiple embryos from a single fertilized ovum; not related to the number of spores.

5. **Conclusion:**
- Based on the definitions and the context of the question, the correct answer is **C) Polyspory**, which specifically refers to the occurrence of more than four spores.

### Final Answer:
The occurrence of more than four spores in a tetrad is called **Polyspory**.

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