Which plant was- used by Taylor to prove semiconservative replication at chromosomal level?

Options

A. Haematoxylan
B. Vicia faba
C. Trillium
D. Ophioglossum

Answer

To answer the question "Which plant was used by Taylor to prove semiconservative replication at chromosomal level?", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Concept of Semiconservative Replication**:
- DNA replication is described as semiconservative because each new DNA molecule consists of one old (parental) strand and one newly synthesized strand. This means that during replication, the two strands of the DNA helix separate, and each serves as a template for the formation of a new complementary strand.

2. **Identifying the Scientist**:
- The scientist who conducted significant research on semiconservative replication is Matthew Meselson and Franklin Stahl, but the question specifically refers to Taylor's work.

3. **Identifying the Plant Used in the Experiment**:
- Taylor and his colleagues conducted experiments to demonstrate semiconservative replication at the chromosomal level using a specific plant.

4. **Finding the Correct Plant**:
- The plant used by Taylor in his experiments was **Vicia faba**, commonly known as the broad bean. This plant was chosen for its large chromosomes, which made it easier to observe the effects of DNA replication.

5. **Conclusion**:
- Therefore, the answer to the question is that **Vicia faba** was the plant used by Taylor to prove semiconservative replication at the chromosomal level.

### Final Answer:
**Vicia faba**

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