Which of the following animals was selected by Morgan for studying linkage

Options

A. Apis indica
B. Agrobacterium tumefaciens
C. Drosophila melanogaster
D. E. coli

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks which animal was selected by Thomas Hunt Morgan for studying the concept of linkage in genetics.

2. **Identifying the Options:**
The options provided are:
- Apis Indica (honeybee)
- Agrobacterium Tumefaciens (bacterium)
- Drosophila Melanogaster (fruit fly)
- E. coli (bacterium)

3. **Researching Thomas Hunt Morgan:**
Thomas Hunt Morgan was a prominent geneticist known for his work on the inheritance of traits and the chromosomal basis of inheritance.

4. **Recognizing Morgan's Model Organism:**
Morgan famously used *Drosophila melanogaster*, commonly known as the fruit fly, for his genetic experiments. This organism was chosen due to its rapid life cycle, ease of breeding, and the ability to observe genetic variations.

5. **Understanding Linkage:**
In his studies, Morgan discovered that certain traits did not assort independently as Mendel's laws suggested. He found that genes located on the same chromosome tended to be inherited together, a phenomenon known as linkage.

6. **Conclusion:**
Based on Morgan's research, the correct answer to the question is *Drosophila melanogaster*.

**Final Answer:**
The animal selected by Morgan for studying linkage is *Drosophila melanogaster*.

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