The gene theory was presented by

Options

A. 1)Wilson
B. 2)Morgan
C. 3)Mendel
D. 4)Bateson

Answer

To solve the question "The gene theory was presented by," we will analyze the options provided and identify who first presented the gene theory.

### Step-by-Step Solution:

1. **Understanding the Gene Theory**:
- The gene theory is a fundamental principle in genetics that explains how traits or characteristics are passed from parents to offspring through genes.

2. **Analyzing the Options**:
- The options given are:
- A) Wilson
- B) Morgan
- C) Mendel
- D) Bateson

3. **Evaluating Option A: Wilson**:
- Edmund Becher Wilson, along with Nettie Maria Stevens, is known for his work on sex determination through chromosomes, not for presenting the gene theory. Therefore, this option is incorrect.

4. **Evaluating Option B: Morgan**:
- Thomas Hunt Morgan is known for establishing the chromosomal theory of inheritance, which states that genes are located on chromosomes. However, he did not present the gene theory itself. Thus, this option is also incorrect.

5. **Evaluating Option C: Mendel**:
- Gregor Johann Mendel is recognized as the father of genetics. He discovered the fundamental laws of inheritance through his experiments with pea plants and is credited with presenting the gene theory. This option is correct.

6. **Evaluating Option D: Bateson**:
- William Bateson is credited with coining the term "genetics" and other related terms, but he did not present the gene theory. Therefore, this option is incorrect.

7. **Conclusion**:
- The correct answer is option C: Mendel.

### Final Answer:
The gene theory was presented by Mendel.

---