What is the Recognition sequence of EcoRI ?

Answer

**Step-by-Step Solution:**

1. **Understanding EcoRI**: EcoRI is a type of restriction enzyme that recognizes specific sequences in double-stranded DNA (dsDNA) and cuts the DNA at those sites.

2. **Identifying the Recognition Sequence**: The recognition sequence for EcoRI is a specific arrangement of nucleotides that is palindromic. A palindromic sequence reads the same in both directions on complementary strands.

3. **The Palindromic Sequence**: The specific palindromic sequence recognized by EcoRI is:
- **G A A T T C**

4. **Cutting Site**: EcoRI cuts the DNA between the G and A in the sequence. This means it cleaves the DNA at the following position:
- Between the G (guanine) and the A (adenine) of the sequence G A A T T C.

5. **Final Recognition Sequence**: Therefore, the recognition sequence of EcoRI is:
- **5' - G A A T T C - 3'**