The first transgenic cow , Rosie , Produced human protein - enriched milk. Which of the following year it was produced and what is the human protein produced in the milk ?

Options

A. In 1993 and `beta` - lactamase enzyme
B. In 1997 and `alpha` - lactamase protein
C. In 1999 and `alpha-1` - antitrypsin enzyme
D. In 1993 and adenosine deaminase enzyme

Answer

To solve the question regarding the first transgenic cow, Rosie, we need to identify two key pieces of information: the year she was produced and the specific human protein that was enriched in her milk.

### Step-by-Step Solution:

1. **Identify the Year of Production**:
- The first transgenic cow, Rosie, was produced in **1997**. This is a significant milestone in biotechnology as it marked the creation of an animal genetically modified to produce human proteins.

2. **Determine the Human Protein Produced**:
- The human protein that was produced in Rosie’s milk is **alpha-lactalbumin**. This protein is important as it is beneficial for infants, particularly in enhancing the nutritional quality of milk.

3. **Additional Information**:
- Rosie’s milk contained approximately **2.4 grams of alpha-lactalbumin per liter**. This protein is not typically found in significant amounts in the milk of regular cows, making Rosie’s milk particularly valuable for infant nutrition.

### Final Answer:
- The first transgenic cow, Rosie, was produced in **1997**, and the human protein enriched in her milk is **alpha-lactalbumin**.

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