Chromosomal theory of inheritance was proposed by:

Options

A. Sutton and Boveri
B. Bateson and Punnet
C. T.H. Morgan
D. Watson and crick

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks who proposed the chromosomal theory of inheritance.

2. **Recall Key Scientists**: The chromosomal theory of inheritance was proposed by two scientists: Walter Sutton and Theodor Boveri.

3. **Understand the Theory**: The chromosomal theory of inheritance establishes a connection between hereditary traits and the behavior of chromosomes during cell division.

4. **Differentiate Contributions**:
- Walter Sutton and Theodor Boveri are credited with the proposal of the chromosomal theory.
- Thomas Hunt Morgan provided experimental proof for this theory.
- Gregor Mendel is known for his work on inheritance patterns, but he did not propose this theory.

5. **Conclusion**: Therefore, the correct answer to the question is that the chromosomal theory of inheritance was proposed by Walter Sutton and Theodor Boveri.

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