the term 'linkage' was coined by :

Options

A. W. Sutton
B. T.H. Morgan
C. T. Boveri
D. G. Mendel

Answer

To answer the question "The term 'linkage' was coined by:", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Linkage**: Linkage refers to the tendency of genes located close to each other on a chromosome to be inherited together during meiosis. This concept is crucial in genetics as it helps explain patterns of inheritance.

2. **Identify the Scientist Associated with Linkage**: The term 'linkage' is specifically associated with the work of a scientist. We need to determine who that scientist is.

3. **Research the Contributions of Key Scientists**:
- **T.H. Morgan**: He is known for his work on Drosophila (fruit flies) and is credited with coining the term 'linkage' after conducting dihybrid cross experiments.
- **W. Sutton and Theodor Boveri**: They contributed to the chromosomal theory of inheritance but did not coin the term 'linkage'.
- **Gregor Mendel**: Known as the father of genetics for his work on pea plants and the laws of inheritance, but he did not coin the term 'linkage'.

4. **Conclude the Correct Answer**: Based on the research, T.H. Morgan is the scientist who coined the term 'linkage'.

### Final Answer:
The term 'linkage' was coined by T.H. Morgan.

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