Who first proved that heredity is controlled by nucleus

Options

A. Strasburger
B. Hammerling
C. Mendel
D. Hugo de veries

Answer

To answer the question "Who first proved that heredity is controlled by the nucleus?", we can follow these steps:

### Step 1: Understand the Question
The question is asking for the scientist who first demonstrated that heredity is governed by the nucleus of a cell.

### Step 2: Analyze the Options
We need to evaluate the provided options to identify the correct scientist.

1. **Strasperger**: This option is incorrect. Strasperger is known for his work on nuclear and cellular division, but not specifically for proving that heredity is controlled by the nucleus.

2. **Hamerling**: This option is correct. Hamerling conducted experiments that showed that the nucleus is responsible for heredity. He used the green alga Acetabularia to demonstrate that the nucleus contains the genetic material necessary for inheritance.

3. **Mendel**: This option is incorrect. Gregor Mendel is known as the father of modern genetics for his work on pea plants, but he did not specifically prove that heredity is controlled by the nucleus.

4. **Hugo De Vries**: This option is also incorrect. Hugo De Vries is known for his mutation theory of evolution, but he did not focus on the role of the nucleus in heredity.

### Step 3: Conclusion
Based on the analysis, the correct answer is **Hamerling**, as he was the first to prove that heredity is controlled by the nucleus.

### Final Answer
**Hamerling** is the scientist who first proved that heredity is controlled by the nucleus.

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