The first fruitful results in the study of inheritance of biological traits were obtained by

Options

A. Shull
B. T.H. Morgan
C. G.J. Mendel
D. Punnet & Bateson

Answer

To solve the question regarding who obtained the first fruitful results in the study of inheritance of biological traits, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the individual who made significant contributions to the study of inheritance, specifically mentioning "fruitful results."

2. **Identify Key Terms**:
- "Fruitful results" refers to successful and meaningful findings in genetics.
- "Inheritance" pertains to the passing of genetic traits from parents to offspring.

3. **Evaluate the Options**:
- **Option A: Shall** - Not a recognized figure in genetics.
- **Option B: Morgan** - Refers to Thomas Hunt Morgan, known for his work on fruit flies, but not the first.
- **Option C: G.J. Mendel** - Refers to Gregor Johann Mendel, known as the father of genetics for his pioneering work with pea plants.
- **Option D: Pannet and Baptism** - Not relevant figures in the context of inheritance.

4. **Recall Mendel’s Contributions**:
- Gregor Johann Mendel conducted experiments with pea plants in the mid-19th century (specifically in 1866).
- He formulated the basic laws of inheritance, including the concepts of dominant and recessive traits.

5. **Select the Correct Answer**: Based on the evaluation, the correct answer is **Option C: G.J. Mendel**.

### Final Answer:
The first fruitful results in the study of inheritance of biological traits were obtained by **G.J. Mendel** (Gregor Johann Mendel).

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