Biology · Principles and Processes in Biotechnology

Given below are two statements: Statement I: Exonucleases make internal cuts within a DNA strand at specific palindromic sequences. Statement II: Restriction endonucleases add methyl groups to host DNA to protect it from degradation. In the light of the above statements, choose the most appropriate answer from the options given below:

1. A
   Both Statement I and Statement II are correct.
2. B
   Both Statement I and Statement II are incorrect.
3. C
   Statement I is correct but Statement II is incorrect.
4. D
   Statement I is incorrect but Statement II is correct.