Rosie was a :

Options

A. Transgenic animal
B. Cloned animal
C. Transgenic prokaryote
D. All of these

Answer

**Step-by-Step Solution:**

1. **Identify Rosie**: The question asks about Rosie, which is a specific entity in biotechnology.

2. **Determine the Type of Organism**: Rosie is known to be a cow, and more specifically, she is recognized as a genetically modified cow.

3. **Understand Transgenic Animals**: Transgenic animals are those that have had a foreign gene deliberately inserted into their genome. In this case, Rosie was engineered to produce milk that contains human proteins.

4. **Evaluate the Milk Produced**: The milk produced by Rosie is enriched with human alpha-lactalbumin, making it nutritionally more balanced for human babies compared to normal cow milk.

5. **Analyze the Options**:
- **Transgenic Animal**: Correct, as Rosie is a genetically modified cow.
- **Cloned Animal**: Incorrect, as cloning refers to genetically identical organisms, and Rosie is genetically different from normal cows.
- **Transgenic Prokaryote**: Incorrect, as prokaryotes are bacteria and Rosie is a eukaryotic animal.
- **All of These**: Incorrect, since not all options are correct.

6. **Conclusion**: The correct answer to the question "Rosie was a" is "transgenic animal."

**Final Answer**: Rosie was a transgenic animal.

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