Biology · Principles and Processes in Biotechnology

Which of the following represents a true palindromic nucleotide sequence recognized by \( \text{EcoRI} \) in double-stranded DNA when read in the \( 5' \rightarrow 3' \) direction?

1. \( 5' - \text{AAGCTT} - 3' \)
2. \( 5' - \text{GAATTC} - 3' \)
3. \( 5' - \text{GGATCC} - 3' \)
4. \( 5' - \text{CTCGAG} - 3' \)