Which one of the following palindromic base sequences in DNA can be easily cut at about the middle by some particular restriction enzyme?
5'..................... CGTTCG.............3'
3'......................ATGGTA...............5'
5'..................... GATATG.............3'
3'......................CTACTA...............5'
5'..................... GAATTC.............3'
3'......................CTTAAG...............5'
5'..................... CACGTA.............3'
3'......................CTCAGT...............5'
As learnt in
Palindromic sequence for ECORI -
- wherein
produce sticky ends
Option 1)
5'..................... CGTTCG.............3'
3'......................ATGGTA...............5'
This option is incorrect
Option 2)
5'..................... GATATG.............3'
3'......................CTACTA...............5'
This option is incorrect
Option 3)
5'..................... GAATTC.............3'
3'......................CTTAAG...............5'
This option is correct
Option 4)
5'..................... CACGTA.............3'
3'......................CTCAGT...............5'
This option is incorrect