Triple fusion was studied for the first time by

Options

A. Hofmeister
B. Nemec
C. Strasburger
D. Nawaschin.

Answer

To answer the question "Triple fusion was studied for the first time by," we will analyze the options provided and identify the correct scientist based on their contributions to the field of biology.

### Step-by-Step Solution:

1. **Understand the Concept of Triple Fusion**:
- Triple fusion is a process that occurs during fertilization in flowering plants, where one male gamete fuses with two polar nuclei in the embryo sac, leading to the formation of the triploid endosperm.

2. **Evaluate the Options**:
- **Option 1: Hofmeister**
- Hofmeister is known for his work on the alternation of generations in plants, not specifically for triple fusion.

- **Option 2: Nemec**
- Nemec is associated with the study of the pollen embryo sac, but he did not discover triple fusion.

- **Option 3: Strasburger**
- Strasburger contributed to the understanding of the growth of the pollen tube into the embryo sac, but again, he is not credited with the discovery of triple fusion.

- **Option 4: Navashin**
- Navashin is recognized for his discovery of vegetative fertilization and specifically for studying triple fusion in plants.

3. **Conclusion**:
- Based on the contributions of each scientist, it is clear that the correct answer to the question is **Navashin**, as he was the first to study triple fusion.

### Final Answer:
Triple fusion was studied for the first time by **Navashin**.

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