Linkage in Drospohila was reported by

Options

A. Mendel
B. Correns
C. Morgan
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:** The question asks about who reported linkage in Drosophila. Linkage refers to the tendency of genes located close to each other on the same chromosome to be inherited together.

2. **Evaluating the Options:**
- **Option 1: Mendel** - Gregor Mendel is known for his foundational work in genetics, particularly the laws of inheritance (law of dominance, law of segregation, and law of independent assortment). However, he did not specifically study linkage in Drosophila.
- **Option 2: Coran's** - While Coran's contributed to genetics, he is not primarily known for the discovery of linkage in Drosophila.
- **Option 3: Morgan** - Thomas Hunt Morgan is the correct answer. He conducted experiments on Drosophila (fruit flies) and discovered that certain traits did not assort independently, indicating that they were linked on the same chromosome.
- **Option 4: None of the above** - This option is incorrect as we have identified Morgan as the right answer.

3. **Conclusion:** Based on the evaluation, the correct answer is **Option 3: Morgan**. He demonstrated that genes located on the same chromosome tend to be inherited together, which is the basis of linkage.

4. **Explanation of Linkage:** Morgan's work showed that when two genes are located on the same chromosome, they do not segregate independently during meiosis. Instead, the parental combinations of traits are more likely to appear in the offspring than recombinant combinations, leading to the concept of linkage.