Who proposed "cell lineage theory" by stating that 'Omnis cellula e cellula" ?

Options

A. Karl Nageli
B. Rudolf Virchow
C. Schwann
D. Anton Von Leeuwenhoek

Answer

To answer the question "Who proposed 'cell lineage theory' by stating that 'Omnis cellula e cellula'?", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Phrase**: The phrase "Omnis cellula e cellula" translates to "All cells arise from pre-existing cells". This is a fundamental concept in cell biology that emphasizes the continuity of life through cellular reproduction.

2. **Identifying the Scientist**: The scientist who proposed this idea is Rudolf Virchow. He is known for modifying the existing cell theory and emphasizing that all cells come from other cells.

3. **Evaluating Other Options**:
- The first option mentioned is Carl Nageli, who is known for his work on plant cells and the concept of meristems, but he did not propose the cell lineage theory.
- The third option is incorrect as well, as it refers to Dutch microscopists who were involved in early microscopy and observations of microorganisms but did not contribute to the cell lineage theory.
- Thus, the only correct answer is Rudolf Virchow.

4. **Conclusion**: Therefore, the correct answer to the question is Rudolf Virchow, who proposed the cell lineage theory with the statement "Omnis cellula e cellula".

### Final Answer:
Rudolf Virchow