Illustrate the recognition sequence of EcoRI and mention what such sequences are called? How does restriction endonuclease act on the DNA molecule?

Explanation

### Step-by-Step Solution:

1. **Identify the Recognition Sequence of EcoRI**:
- EcoRI is a restriction endonuclease that recognizes a specific palindromic DNA sequence. The recognition sequence for EcoRI is:
```
5' - GAATTC - 3'
3' - CTTAAG - 5'
```
...