The cutting of DNA at specific locations is become possible due to__________.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the mechanism that allows for the cutting of DNA at specific locations.

2. **Identifying the Key Term**: The cutting of DNA is facilitated by specific enzymes known as restriction endonucleases.

3. **Defining Restriction Endonucleases**: These are enzymes that can recognize specific sequences of nucleotides in the DNA and cut the DNA at those specific sites.

4. **Understanding the Mechanism**: Restriction endonucleases cut DNA at specific locations known as palindromic sequences. A palindromic sequence is one that reads the same forwards and backwards on complementary strands.

5. **Example of Restriction Endonuclease**: A commonly known restriction enzyme is EcoRI, which recognizes the palindromic sequence GAATTC. It cuts the DNA between the G and the A, creating sticky ends.

6. **Importance of Sticky Ends**: The sticky ends generated by the cutting of DNA can facilitate the insertion of foreign DNA, making these enzymes crucial for genetic engineering and biotechnology.

7. **Conclusion**: Therefore, the cutting of DNA at specific locations is made possible due to restriction endonucleases, also referred to as molecular scissors.

**Final Answer**: The cutting of DNA at specific locations is made possible due to **restriction endonucleases**.

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