Which one of the following palindromic base sequences in DNA can be easily cut at about the middle by some particular restriction enzyme :

Options

A. 5 '— CGTTCG — 3'
3 '— CCAAGC — 5’
B. 5 '— GAATTC — 3'
3'— CTTAAG — 5'
C. 5 '— CTACTG — 3'
3 '— GTGCAA — 5 '
D. 5 '— CACGTA — 3'
3'— GCATAC — 5 '

Answer

B