In the following palindromic base sequences of DNA, which one can be cut easily by particular restriction enzyme?
1
5' G T A T T C 3'; 3' C A T A A G 5'
2
5' G A T A C T 3'; 3' C T A T G A 5'
3
5' G A A T T C 3'; 3' C T T A A G 5'
4
5' C T C A G T 3'; 3' G A G T C A 5'