The first mammalian clone ''Dolly'' was created by :

Options

A. Fisher and Velton
B. Wilmut and Campbell
C. Morgan
D. Bernstein

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the creators of the first mammalian clone, Dolly. It provides multiple-choice options.

2. **Identifying Dolly**: Dolly was a sheep and is recognized as the first mammalian clone. She was born on July 5, 1996.

3. **Cloning Technique**: The method used to create Dolly was somatic cell nucleus transfer. This technique involves transferring the nucleus from a somatic cell into an unfertilized egg that has had its nucleus removed (inucleated oocyte).

4. **Recognizing the Scientists**: The scientists credited with the creation of Dolly are Ian Wilmut and Keith Campbell.

5. **Eliminating Other Options**: The other options (A. Fisher and Welton, C. Morgan, D. Bernstein) are not associated with the cloning of Dolly.

6. **Final Answer**: Based on the information, the correct answer is option B: Wilmuth and Campbell.

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