Gregor Johann Mendel was born in:

Options

A. Australia
B. Heizendorf
C. Maravia
D. Brunn.

Answer

**Step-by-Step Solution:**

1. **Identify the Subject**: The question asks about the birthplace of Gregor Johann Mendel, who is known as the father of genetics.

2. **Recall Mendel's Contributions**: Mendel is famous for his experiments with pea plants, which led to the formulation of the foundational laws of inheritance: the Law of Segregation, the Law of Dominance, and the Law of Independent Assortment.

3. **Determine Mendel's Birthplace**: Mendel was born in a region that is now part of the Czech Republic, specifically in the area known as Hynčice (formerly Hasendorf) in Moravia, which was part of the Austrian Empire at the time of his birth.

4. **Evaluate the Options**: The options provided are:
- Australia
- Hasendorf
- Maravia
- Brune

5. **Analyze Each Option**:
- **Australia**: This is a different continent and not related to Mendel.
- **Hasendorf**: This is a correct option as it refers to the place where Mendel was born.
- **Maravia**: This is a region but not the specific name of the place.
- **Brune**: This does not relate to Mendel's birthplace.

6. **Conclusion**: The correct answer is Hasendorf, which is in Austria (specifically in Moravia).

**Final Answer**: Gregor Johann Mendel was born in Hasendorf, Austria.

---