Who is known as the father of blood group studies?

Options

A. H F nuttal
B. Francis Galton
C. Achibald Garrod
D. Landsteiner

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks for the scientist known as the father of blood group studies.

2. **Consider the Options**: The options provided are not listed here, but we need to determine which scientist is recognized for their contributions to blood group research.

3. **Research the Contributions**: The scientist most commonly associated with blood group studies is Karl Landsteiner. He was an Austrian biologist, physician, and immunologist.

4. **Understand His Discoveries**: Landsteiner discovered the ABO blood group system, which categorizes blood into four main types: A, B, AB, and O, based on the presence or absence of specific antigens on the surface of red blood cells.

5. **Recognize Additional Contributions**: In addition to the ABO blood group system, Landsteiner also researched the Rh factor, which determines whether blood is Rh positive or Rh negative.

6. **Acknowledge His Recognition**: For his groundbreaking work in blood group classification, Karl Landsteiner was awarded the Nobel Prize in Physiology in 1930.

7. **Conclude the Answer**: Therefore, the correct answer to the question is Karl Landsteiner, who is known as the father of blood group studies.

**Final Answer**: Karl Landsteiner

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