Who identified that the myoglobin gene contains many segments that vary in size and composition from individual to individual and developed the technique of DNA finger printing ?

Options

A. Morgan
B. Jeffreys
C. Benzer
D. Henking

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks for the scientist who identified that the myoglobin gene contains segments that vary in size and composition among individuals and who also developed the technique of DNA fingerprinting.

2. **Identifying the Myoglobin Gene:**
The myoglobin gene is a gene that encodes for the myoglobin protein, which is important for oxygen storage in muscle tissues. It has been found to have segments that can vary among different individuals, indicating genetic polymorphism.

3. **Recognizing the Key Contributions:**
The question specifically mentions two contributions:
- The identification of the variability in the myoglobin gene.
- The development of DNA fingerprinting.

4. **Evaluating the Options:**
The options provided are:
- A. Morgan
- B. Jaffreys
- C. Benzer
- D. Hanking

5. **Analyzing Each Option:**
- **Morgan:** Known for his work on Drosophila and the white-eyed mutation, not related to DNA fingerprinting.
- **Benzer:** Worked on complementation tests and phages, not DNA fingerprinting.
- **Hanking:** Discovered sex determination in insects, not related to DNA fingerprinting.
- **Jaffreys (Alec Jeffreys):** Developed the technique of DNA fingerprinting and studied genetic variations.

6. **Conclusion:**
Based on the analysis, the correct answer is **B. Jaffreys (Alec Jeffreys)**, as he identified the variability in the myoglobin gene and developed DNA fingerprinting.