Which one of the following scientist's name is correctly matched with the theory put forth by him?

Options

A. `{:("Mendel","Theory of Pangenesis"):}`
B. `{:("Weismann","Theory of continuity of Germplasm"):}`
C. `{:("Pasteur","Inheritance of acquired characters"):}`
D. `{:("de Vries","Natural selection"):}`

Answer

To solve the question regarding which scientist's name is correctly matched with the theory put forth by him, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Scientists and Theories**:
- We need to review the options provided in the question, which include various scientists and the theories they are associated with.

2. **Evaluate Each Option**:
- **Mendel and Pangenesis**: Gregor Mendel is known for his laws of inheritance and is often referred to as the father of genetics. However, he did not propose the theory of Pangenesis. This option is incorrect.

- **Weismann and Continuity of Germplasm**: August Weismann proposed the theory of continuity of germplasm, which states that only the germ cells (egg and sperm) can pass on traits to the next generation, while somatic cells do not contribute to inheritance. This option is correct.

- **Darwin and Natural Selection**: Charles Darwin is known for the theory of natural selection, which explains how species evolve over time. If "Devery" is mentioned, it is likely a typographical error or misunderstanding, as the correct name is Darwin. This option is incorrect.

- **Lamarck and Inheritance of Acquired Characters**: Jean-Baptiste Lamarck proposed the idea that organisms can pass on traits acquired during their lifetime to their offspring. This is not directly related to the question but is important to note for context.

3. **Conclusion**:
- After evaluating all the options, the only correct match is **Weismann and the theory of continuity of germplasm**. Therefore, the correct answer is the second option.

### Final Answer:
The scientist correctly matched with his theory is **Weismann and the theory of continuity of germplasm**.

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