Find out the wrong statement.

Options

A. Mobile genetic elements, transposons were vizualized by BarbaraMC Clintock .
B. Udder cell,a somatic cell is used to produce the cloned sheep by nuclear transplantation method .
C. Dr. Ian Wilmurt proudce sheep called Dolly.
D. DNA ligases are used to Cleave a DNA molecule .

Answer

To find out the wrong statement among the given options, we will analyze each statement step by step.

### Step-by-Step Solution:

1. **Analyze Statement 1**: "Mobile genetic elements, transposons, were visualized by Barbara McClintock."
- **Explanation**: This statement is true. Barbara McClintock is indeed known for her discovery of transposons, which are mobile genetic elements that can move within the genome.

2. **Analyze Statement 2**: "Somatic cell is used for udder cells in milking animals."
- **Explanation**: This statement is also true. Somatic cells are the non-reproductive cells in an organism, and udder cells from milking animals can be used in cloning processes.

3. **Analyze Statement 3**: "Ian Wilmert produced sheep called Dolly."
- **Explanation**: This statement is true. Ian Wilmut is the scientist who successfully cloned the sheep named Dolly using somatic cell nuclear transfer.

4. **Analyze Statement 4**: "DNA ligases are used to cleave DNA molecules."
- **Explanation**: This statement is false. DNA ligases are enzymes that join two DNA fragments together, not cleave them. The enzymes that cleave DNA are known as restriction enzymes.

### Conclusion:
The wrong statement among the options provided is Statement 4: "DNA ligases are used to cleave DNA molecules."

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