The first nuclear transplant form an animal cell in an enucleated egg that produced a noramal offspring was performed in-

Options

A. sheep
B. frog
C. cat
D. dog

Answer

**Step-by-Step Solution:**

1. **Understanding Nuclear Transplantation**: Nuclear transplantation involves transferring the nucleus from a somatic (body) cell into an enucleated egg cell (an egg cell that has had its nucleus removed). This process is crucial for cloning.

2. **Identifying the First Successful Case**: The first successful nuclear transplant that resulted in a normal offspring was performed on a sheep. This was a significant milestone in biotechnology and cloning.

3. **Name of the Sheep**: The sheep that was produced from this nuclear transplantation was named Dolly. Dolly was created using a somatic cell taken from the mammary gland of an adult sheep.

4. **Year of Achievement**: The cloning of Dolly was achieved in 1996, marking it as the first cloned mammal from an adult somatic cell.

5. **Significance**: Dolly's creation demonstrated that it was possible to create a clone from an adult cell, which had profound implications for genetics, cloning, and biotechnology.

**Final Answer**: The first nuclear transplant from an animal cell in an enucleated egg that produced a normal offspring was performed in a sheep, specifically named Dolly, in 1996.

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