It creates two loose DNA ends that, if left unfixed, can lead to cell death. Researchers from the Biotechnology Center ...

After two fragments with complementary sticky ends are joined, the DNA backbone may be covalently sealed using another enzyme called DNA ligase.

When they act on a DNA molecule, restriction enzymes produce "blunt" ends when they cut in the middle of the recognition sequence, and they yield "sticky" ends when they cut at the recognition ...